This historical map portrays the area of Greenough Ridge in 2012, primarily covering Greenough Ridge. Featuring a scale of 1:24,000, this map provides a highly detailed snapshot of the terrain, roads, buildings, counties, and historical landmarks in the Greenough Ridge region at the time. Published in 2012, it is the sole known edition of this map.
This is the sole edition of this map. No revisions or reprints were ever made.
1920 · Glenblair
USGS Topo · 1:62,500
1922 · Willits
USGS Topo · 1:62,500
1942 · Willits
USGS Topo · 1:62,500
1943 · Glenblair
USGS Topo · 1:62,500
1943 · Boonville
USGS Topo · 1:62,500
1943 · Navarro
USGS Topo · 1:62,500
1944 · Willits
USGS Topo · 1:62,500
1944 · Saddle Point
USGS Topo · 1:62,500
1957 · Ukiah
USGS Topo · 1:250,000
1959 · Boonville
USGS Topo · 1:62,500