
Grizzly Mtn dominates the central landscape of this quadrangle, serving as a high-elevation anchor between the Crooked River National Grassland to the west and the Ochoco National Forest to the east. The terrain transitions from the steep slopes of the Ochoco Mountains down toward the alluvial expanses of Grimes Flat in the south. This area reflects a long-standing ranching and rural residential character, with legacy infrastructure such as the Grizzly Cem near the small settlement of Grizzly and the privately situated Six Springs Ranch Airport.
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This is the sole edition of this map. No revisions or reprints were ever made.
1926 · Bend
USGS Topo · 1:125,000
1928 · Madras
USGS Topo · 1:125,000
1929 · Bend
USGS Topo · 1:125,000
1931 · Madras
USGS Topo · 1:125,000
1955 · Bend
USGS Topo · 1:250,000
1957 · Bend
USGS Topo · 1:250,000
1958 · Bend
USGS Topo · 1:250,000
1962 · Oneil
USGS Topo · 1:24,000
1962 · Huston Lake
USGS Topo · 1:24,000
1962 · Prineville
USGS Topo · 1:24,000