
Ochoco National Forest defines the central character of this Grant County landscape, where the South Fork John Day Wild and Scenic River carves through high desert terrain. The map documents a complex system of water management and livestock grazing history, evidenced by an extensive network of reservoirs like Big Mowich Reservoir, Hardscrabble Reservoir, and Cayuse Reservoir. These features, alongside named spring sites such as Blue Pot Spring and Willow Spring, reflect the vital importance of water resources in the high-elevation flats of the Oregon interior.
67 named features on this map. Tap any name to fly to it.
Don’t see what you’re looking for? This feature index may not catch every label — zoom into the map to look around manually.
This is the sole edition of this map. No revisions or reprints were ever made.
1932 · Dayville
USGS Topo · 1:125,000
1936 · Dayville
USGS Topo · 1:125,000
1940 · Aldrich Mtn.
USGS Topo · 1:62,500
1943 · Aldrich Mtn.
USGS Topo · 1:62,500
1955 · Canyon City
USGS Topo · 1:250,000
1959 · Canyon City
USGS Topo · 1:250,000
1961 · Izee
USGS Topo · 1:62,500
1972 · Wolf Mountain
USGS Topo · 1:24,000
1972 · Aldrich Gulch
USGS Topo · 1:24,000
1972 · Aldrich Mountain South
USGS Topo · 1:24,000