Upper Lake sits at the junction of several valley systems in this Lake County survey, serving as a focal point for the surrounding agricultural and wild landscapes. To the west, Saratoga Springs and Bachelor Valley represent long-established settlement areas near the foothills of the Mayacmas Mountains. The terrain transitions from the alluvial floors of Middle Creek Valley and Clover Valley into the steep, ridge-dominated land of the Mendocino National Forest, where peaks like Youngs Peak and Sleeper Peak overlook the northern reaches of the Clear Lake basin.
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This is the sole edition of this map. No revisions or reprints were ever made.
1920 · Ukiah
USGS Topo · 1:62,500
1922 · Hullville
USGS Topo · 1:62,500
1938 · Lakeport
USGS Topo · 1:62,500
1943 · Pomo
USGS Topo · 1:62,500
1944 · Ukiah
USGS Topo · 1:62,500
1951 · Lake Pillsbury
USGS Topo · 1:62,500
1951 · Lakeport
USGS Topo · 1:62,500
1957 · Ukiah
USGS Topo · 1:250,000
1958 · Purdys Gardens
USGS Topo · 1:24,000
1958 · Cow Mountain
USGS Topo · 1:24,000