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Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer County, CO

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer...

Significance: Trail Ridge Road has national, state, and local significance as an engineering feat -the highest continuous highway in the United States and for its role in the development of the Rocky Mountain N... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer County, CO

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer...

Significance: Trail Ridge Road has national, state, and local significance as an engineering feat -the highest continuous highway in the United States and for its role in the development of the Rocky Mountain N... More

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer County, CO

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer...

Significance: Trail Ridge Road has national, state, and local significance as an engineering feat -the highest continuous highway in the United States and for its role in the development of the Rocky Mountain N... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

Rocky Mountain National Park Roads & Bridges, Estes Park, Larimer County, CO

Rocky Mountain National Park Roads & Bridges, Estes Park, Larimer Coun...

Significance: The road system of Rocky Mountain National Park contains the highest continuous highway in the United States and the highest elevation roads in the National Park Service system. The roads were co... More

Beaver Creek Bridge, Hot Springs, Fall River County, SD

Beaver Creek Bridge, Hot Springs, Fall River County, SD

Significance: Beaver Creek Bridge was an important link in a scenic road system developed by the South Dakota State Highway Commission to facilitate motor tourism in the Black Hills. Although typical of concre... More

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer County, CO

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer...

Significance: Trail Ridge Road has national, state, and local significance as an engineering feat -the highest continuous highway in the United States and for its role in the development of the Rocky Mountain N... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

Beaver Creek Bridge, Hot Springs, Fall River County, SD

Beaver Creek Bridge, Hot Springs, Fall River County, SD

Significance: Beaver Creek Bridge was an important link in a scenic road system developed by the South Dakota State Highway Commission to facilitate motor tourism in the Black Hills. Although typical of concre... More

Beaver Creek Bridge, Hot Springs, Fall River County, SD

Beaver Creek Bridge, Hot Springs, Fall River County, SD

Significance: Beaver Creek Bridge was an important link in a scenic road system developed by the South Dakota State Highway Commission to facilitate motor tourism in the Black Hills. Although typical of concre... More

Beaver Creek Bridge, Hot Springs, Fall River County, SD

Beaver Creek Bridge, Hot Springs, Fall River County, SD

Significance: Beaver Creek Bridge was an important link in a scenic road system developed by the South Dakota State Highway Commission to facilitate motor tourism in the Black Hills. Although typical of concre... More

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer County, CO

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer...

Significance: Trail Ridge Road has national, state, and local significance as an engineering feat -the highest continuous highway in the United States and for its role in the development of the Rocky Mountain N... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

Rocky Mountain National Park Roads & Bridges, Estes Park, Larimer County, CO

Rocky Mountain National Park Roads & Bridges, Estes Park, Larimer Coun...

Significance: The road system of Rocky Mountain National Park contains the highest continuous highway in the United States and the highest elevation roads in the National Park Service system. The roads were co... More

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer County, CO

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer...

Significance: Trail Ridge Road has national, state, and local significance as an engineering feat -the highest continuous highway in the United States and for its role in the development of the Rocky Mountain N... More

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer County, CO

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer...

Significance: Trail Ridge Road has national, state, and local significance as an engineering feat -the highest continuous highway in the United States and for its role in the development of the Rocky Mountain N... More

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer County, CO

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer...

Significance: Trail Ridge Road has national, state, and local significance as an engineering feat -the highest continuous highway in the United States and for its role in the development of the Rocky Mountain N... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

Beaver Creek Bridge, Hot Springs, Fall River County, SD

Beaver Creek Bridge, Hot Springs, Fall River County, SD

Significance: Beaver Creek Bridge was an important link in a scenic road system developed by the South Dakota State Highway Commission to facilitate motor tourism in the Black Hills. Although typical of concre... More

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer County, CO

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer...

Significance: Trail Ridge Road has national, state, and local significance as an engineering feat -the highest continuous highway in the United States and for its role in the development of the Rocky Mountain N... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

Rocky Mountain National Park Roads & Bridges, Estes Park, Larimer County, CO

Rocky Mountain National Park Roads & Bridges, Estes Park, Larimer Coun...

Significance: The road system of Rocky Mountain National Park contains the highest continuous highway in the United States and the highest elevation roads in the National Park Service system. The roads were co... More

Beaver Creek Bridge, Hot Springs, Fall River County, SD

Beaver Creek Bridge, Hot Springs, Fall River County, SD

Significance: Beaver Creek Bridge was an important link in a scenic road system developed by the South Dakota State Highway Commission to facilitate motor tourism in the Black Hills. Although typical of concre... More

Beaver Creek Bridge, Hot Springs, Fall River County, SD

Beaver Creek Bridge, Hot Springs, Fall River County, SD

Significance: Beaver Creek Bridge was an important link in a scenic road system developed by the South Dakota State Highway Commission to facilitate motor tourism in the Black Hills. Although typical of concre... More

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer County, CO

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer...

Significance: Trail Ridge Road has national, state, and local significance as an engineering feat -the highest continuous highway in the United States and for its role in the development of the Rocky Mountain N... More

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer County, CO

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer...

Significance: Trail Ridge Road has national, state, and local significance as an engineering feat -the highest continuous highway in the United States and for its role in the development of the Rocky Mountain N... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

Beaver Creek Bridge, Hot Springs, Fall River County, SD

Beaver Creek Bridge, Hot Springs, Fall River County, SD

Significance: Beaver Creek Bridge was an important link in a scenic road system developed by the South Dakota State Highway Commission to facilitate motor tourism in the Black Hills. Although typical of concre... More

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer County, CO

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer...

Significance: Trail Ridge Road has national, state, and local significance as an engineering feat -the highest continuous highway in the United States and for its role in the development of the Rocky Mountain N... More

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer County, CO

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer...

Significance: Trail Ridge Road has national, state, and local significance as an engineering feat -the highest continuous highway in the United States and for its role in the development of the Rocky Mountain N... More

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer County, CO

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer...

Significance: Trail Ridge Road has national, state, and local significance as an engineering feat -the highest continuous highway in the United States and for its role in the development of the Rocky Mountain N... More

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer County, CO

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer...

Significance: Trail Ridge Road has national, state, and local significance as an engineering feat -the highest continuous highway in the United States and for its role in the development of the Rocky Mountain N... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

Rocky Mountain National Park Roads & Bridges, Estes Park, Larimer County, CO

Rocky Mountain National Park Roads & Bridges, Estes Park, Larimer Coun...

Significance: The road system of Rocky Mountain National Park contains the highest continuous highway in the United States and the highest elevation roads in the National Park Service system. The roads were co... More

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer County, CO

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer...

Significance: Trail Ridge Road has national, state, and local significance as an engineering feat -the highest continuous highway in the United States and for its role in the development of the Rocky Mountain N... More

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer County, CO

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer...

Significance: Trail Ridge Road has national, state, and local significance as an engineering feat -the highest continuous highway in the United States and for its role in the development of the Rocky Mountain N... More

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer County, CO

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer...

Significance: Trail Ridge Road has national, state, and local significance as an engineering feat -the highest continuous highway in the United States and for its role in the development of the Rocky Mountain N... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

Rocky Mountain National Park Roads & Bridges, Estes Park, Larimer County, CO

Rocky Mountain National Park Roads & Bridges, Estes Park, Larimer Coun...

Significance: The road system of Rocky Mountain National Park contains the highest continuous highway in the United States and the highest elevation roads in the National Park Service system. The roads were co... More

Rocky Mountain National Park Roads & Bridges, Estes Park, Larimer County, CO

Rocky Mountain National Park Roads & Bridges, Estes Park, Larimer Coun...

Significance: The road system of Rocky Mountain National Park contains the highest continuous highway in the United States and the highest elevation roads in the National Park Service system. The roads were co... More

Beaver Creek Bridge, Hot Springs, Fall River County, SD

Beaver Creek Bridge, Hot Springs, Fall River County, SD

Significance: Beaver Creek Bridge was an important link in a scenic road system developed by the South Dakota State Highway Commission to facilitate motor tourism in the Black Hills. Although typical of concre... More

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer County, CO

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer...

Significance: Trail Ridge Road has national, state, and local significance as an engineering feat -the highest continuous highway in the United States and for its role in the development of the Rocky Mountain N... More

Rocky Mountain National Park Roads & Bridges, Estes Park, Larimer County, CO

Rocky Mountain National Park Roads & Bridges, Estes Park, Larimer Coun...

Significance: The road system of Rocky Mountain National Park contains the highest continuous highway in the United States and the highest elevation roads in the National Park Service system. The roads were co... More

Rocky Mountain National Park Roads & Bridges, Estes Park, Larimer County, CO

Rocky Mountain National Park Roads & Bridges, Estes Park, Larimer Coun...

Significance: The road system of Rocky Mountain National Park contains the highest continuous highway in the United States and the highest elevation roads in the National Park Service system. The roads were co... More

Beaver Creek Bridge, Hot Springs, Fall River County, SD

Beaver Creek Bridge, Hot Springs, Fall River County, SD

Significance: Beaver Creek Bridge was an important link in a scenic road system developed by the South Dakota State Highway Commission to facilitate motor tourism in the Black Hills. Although typical of concre... More

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer County, CO

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer...

Significance: Trail Ridge Road has national, state, and local significance as an engineering feat -the highest continuous highway in the United States and for its role in the development of the Rocky Mountain N... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer County, CO

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer...

Significance: Trail Ridge Road has national, state, and local significance as an engineering feat -the highest continuous highway in the United States and for its role in the development of the Rocky Mountain N... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer County, CO

Trail Ridge Road, Between Estes Park & Grand Lake, Estes Park, Larimer...

Significance: Trail Ridge Road has national, state, and local significance as an engineering feat -the highest continuous highway in the United States and for its role in the development of the Rocky Mountain N... More

East Rim Drive, Between South Entrance Road & park boundary, Grand Canyon, Coconino County, AZ

East Rim Drive, Between South Entrance Road & park boundary, Grand Can...

Significance: The scenic drive is an early example of the cooperative agreement between the NPS and BPR to build quality automotive roads within the national parks. Extant features of East Rim Drive representa... More