Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
J. Clark Salyer National Wildlife Refuge Dams, Along Lower Souris Rive...
Significance: The dams represent a historical movement to preserve wildlife and wildlife habitat in the United States, which began in the mid-19th century and continues today. The refuge dams are significant f... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
J. Clark Salyer National Wildlife Refuge Dams, Along Lower Souris Rive...
Significance: The dams represent a historical movement to preserve wildlife and wildlife habitat in the United States, which began in the mid-19th century and continues today. The refuge dams are significant f... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Upper Souris National Wildlife Refuge Dams, Souris River Basin, Foxhol...
Significance: The dams represent a historical movement to preserve wildlife and wildlife habitat in the United States, which began in the mid-19th century and continues today. The refuge dams are significant f... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Upper Souris National Wildlife Refuge Dams, Souris River Basin, Foxhol...
Significance: The dams represent a historical movement to preserve wildlife and wildlife habitat in the United States, which began in the mid-19th century and continues today. The refuge dams are significant f... More
Upper Souris National Wildlife Refuge Dams, Souris River Basin, Foxhol...
Significance: The dams represent a historical movement to preserve wildlife and wildlife habitat in the United States, which began in the mid-19th century and continues today. The refuge dams are significant f... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
J. Clark Salyer National Wildlife Refuge Dams, Along Lower Souris Rive...
Significance: The dams represent a historical movement to preserve wildlife and wildlife habitat in the United States, which began in the mid-19th century and continues today. The refuge dams are significant f... More
J. Clark Salyer National Wildlife Refuge Dams, Along Lower Souris Rive...
Significance: The dams represent a historical movement to preserve wildlife and wildlife habitat in the United States, which began in the mid-19th century and continues today. The refuge dams are significant f... More
J. Clark Salyer National Wildlife Refuge Dams, Along Lower Souris Rive...
Significance: The dams represent a historical movement to preserve wildlife and wildlife habitat in the United States, which began in the mid-19th century and continues today. The refuge dams are significant f... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Great Smoky Mountains National Park Roads & Bridges, Gatlinburg, Sevie...
Significance: The transportation system of Great Smoky Mountains is representative of NPS park road designs throughout the country. Much of the construction work was undertaken by the Civilian Conservation Cor... More
Upper Souris National Wildlife Refuge Dams, Souris River Basin, Foxhol...
Significance: The dams represent a historical movement to preserve wildlife and wildlife habitat in the United States, which began in the mid-19th century and continues today. The refuge dams are significant f... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Grand Canyon Village Utilities, Grand Canyon National Park, Grand Cany...
Significance: The Atchison, Topeka & Santa Fe Railway Company (ATSF) was largely responsible for the development of Grand Canyon Village throughout the first half of the twentieth century. The railroad company... More
Upper Souris National Wildlife Refuge Dams, Souris River Basin, Foxhol...
Significance: The dams represent a historical movement to preserve wildlife and wildlife habitat in the United States, which began in the mid-19th century and continues today. The refuge dams are significant f... More