Significance: Connecting with the Mather Memorial Parkway at Canyon Pass, the East Side Highway provides access to the park from southeastern Washington state and serves as an intra-state transportation artery. More
Significance: The North Entrance Road was for years the most popular entrance to Yellowstone National Park, and remains an important gateway. Survey number: HAER MT-93 Building/structure dates: 1879 Initial C More
Significance: Rock Creek Park was established by Congress in 1890. Jurisdiction of the park was transferred to the National Park Service (NPS) in 1933 and, two years later, a small wood-frame caretaker's reside More
Significance: The visitor center is one of the four most significant visitor centers produced by the "Mission 66" program, which transformed the American National Park system to meet postwar conditions. The pro More
Significance: Union Wharf, probably the oldest commercial wharf in Portland, has a wharf street with flanking building complexes. Building (19-22), part of east group, is composed of what were originally four w More
Significance: The visitor center is one of the four most significant visitor centers produced by the "Mission 66" program, which transformed the American National Park system to meet postwar conditions. The pro More
Significance: Rock Creek Park was established by Congress in 1890. Jurisdiction of the park was transferred to the National Park Service (NPS) in 1933 and, two years later, a small wood-frame caretaker's reside More
Significance: Union Wharf, probably the oldest commercial wharf in Portland, has a wharf street with flanking building complexes. Building (19-22), part of east group, is composed of what were originally four w More
Significance: Union Wharf, probably the oldest commercial wharf in Portland, has a wharf street with flanking building complexes. Building (19-22), part of east group, is composed of what were originally four w More
Significance: Rock Creek Park was established by Congress in 1890. Jurisdiction of the park was transferred to the National Park Service (NPS) in 1933 and, two years later, a small wood-frame caretaker's reside More
Significance: The visitor center is one of the four most significant visitor centers produced by the "Mission 66" program, which transformed the American National Park system to meet postwar conditions. The pro More
Significance: Union Wharf, probably the oldest commercial wharf in Portland, has a wharf street with flanking building complexes. Building (19-22), part of east group, is composed of what were originally four w More
Significance: The visitor center is one of the four most significant visitor centers produced by the "Mission 66" program, which transformed the American National Park system to meet postwar conditions. The pro More
Significance: Rock Creek Park was established by Congress in 1890. Jurisdiction of the park was transferred to the National Park Service (NPS) in 1933 and, two years later, a small wood-frame caretaker's reside More
Significance: The visitor center is one of the four most significant visitor centers produced by the "Mission 66" program, which transformed the American National Park system to meet postwar conditions. The pro More
Significance: Union Wharf, probably the oldest commercial wharf in Portland, has a wharf street with flanking building complexes. Building (19-22), part of east group, is composed of what were originally four w More
Significance: Union Wharf, probably the oldest commercial wharf in Portland, has a wharf street with flanking building complexes. Building (19-22), part of east group, is composed of what were originally four w More
Significance: The visitor center is one of the four most significant visitor centers produced by the "Mission 66" program, which transformed the American National Park system to meet postwar conditions. The pro More
Significance: The visitor center is one of the four most significant visitor centers produced by the "Mission 66" program, which transformed the American National Park system to meet postwar conditions. The pro More
Significance: Union Wharf, probably the oldest commercial wharf in Portland, has a wharf street with flanking building complexes. Building (19-22), part of east group, is composed of what were originally four w More
Significance: Union Wharf, probably the oldest commercial wharf in Portland, has a wharf street with flanking building complexes. Building (19-22), part of east group, is composed of what were originally four w More
Significance: The visitor center is one of the four most significant visitor centers produced by the "Mission 66" program, which transformed the American National Park system to meet postwar conditions. The pro More
Significance: The visitor center is one of the four most significant visitor centers produced by the "Mission 66" program, which transformed the American National Park system to meet postwar conditions. The pro More
Significance: The visitor center is one of the four most significant visitor centers produced by the "Mission 66" program, which transformed the American National Park system to meet postwar conditions. The pro More
Significance: The visitor center is one of the four most significant visitor centers produced by the "Mission 66" program, which transformed the American National Park system to meet postwar conditions. The pro More
Significance: The visitor center is one of the four most significant visitor centers produced by the "Mission 66" program, which transformed the American National Park system to meet postwar conditions. The pro More
Significance: The visitor center is one of the four most significant visitor centers produced by the "Mission 66" program, which transformed the American National Park system to meet postwar conditions. The pro More
Significance: The visitor center is one of the four most significant visitor centers produced by the "Mission 66" program, which transformed the American National Park system to meet postwar conditions. The pro More
Significance: The visitor center is one of the four most significant visitor centers produced by the "Mission 66" program, which transformed the American National Park system to meet postwar conditions. The pro More
Significance: The visitor center is one of the four most significant visitor centers produced by the "Mission 66" program, which transformed the American National Park system to meet postwar conditions. The pro More
Significance: The visitor center is one of the four most significant visitor centers produced by the "Mission 66" program, which transformed the American National Park system to meet postwar conditions. The pro More
Significance: The visitor center is one of the four most significant visitor centers produced by the "Mission 66" program, which transformed the American National Park system to meet postwar conditions. The pro More
Significance: The visitor center is one of the four most significant visitor centers produced by the "Mission 66" program, which transformed the American National Park system to meet postwar conditions. The pro More