
Winema National Forest dominates this landscape, defined by the volcanic topography of the eastern Cascades in the late 1980s. The Williamson River snakes through the western portion of the quadrangle, serving as a focal point for the low-lying wetlands and stock ponds near Corral. A notable historical imprint is visible in the south, where the Old Railroad Grade and an Old Indian Treaty Boundary cross the terrain, suggesting earlier eras of transit and land demarcation. Elevated peaks such as Yamsay Mountain and Little Yamsay Mountain rise above a network of drainages including Knight Creek and Modoc Creek. The area's resource-based character is evidenced by the presence of a Cinder Pit and a Gaging Station along the river near Gordon Lake, providing a clear picture of the region's managed wilderness and hydrological monitoring.
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1889 · Klamath
USGS Topo · 1:250,000
1894 · Klamath
USGS Topo · 1:250,000
1935 · Chemult
USGS Topo · 1:96,000
1941 · Chemult
USGS Topo · 1:125,000
1955 · Crescent
USGS Topo · 1:250,000
1955 · Klamath Falls
USGS Topo · 1:250,000
1957 · Crescent
USGS Topo · 1:250,000
1957 · Klamath Marsh
USGS Topo · 1:62,500
1958 · Crescent
USGS Topo · 1:250,000
1958 · Klamath Falls
USGS Topo · 1:250,000