
The Grand Hogback serves as a striking geological spine across this section of Garfield County, marking a sharp transition in the landscape near the southern boundary. To the north, the terrain is defined by complex drainage systems and ridges within the White River National Forest, including Horse Mtn and Parker Ridge. This area is characterized by a dense network of watercourses such as Middle Rifle Cr and W Rifle Cr, which carve through the high country. Near the southern edge, the impressive Rifle Arch stands as a notable landmark just north of Rifle Gap Reservoir.
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1906 · Grand Hogback
USGS Topo · 1:125,000
1910 · Grand Hogback
USGS Topo · 1:125,000
1952 · Rio Blanco
USGS Topo · 1:24,000
1952 · Anvil Points
USGS Topo · 1:24,000
1952 · Horse Mountain
USGS Topo · 1:24,000
1952 · Rifle
USGS Topo · 1:24,000
1957 · Leadville
USGS Topo · 1:250,000
1959 · Leadville
USGS Topo · 1:250,000
1960 · Leadville
USGS Topo · 1:250,000
1962 · Leadville
USGS Topo · 1:250,000