This historical map portrays the area of Zeni Ridge in 2012, primarily covering Little Penny. 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 Zeni 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.
1943 · Point Arena
USGS Topo · 1:62,500
1943 · Boonville
USGS Topo · 1:62,500
1943 · Navarro
USGS Topo · 1:62,500
1943 · Ornbaun
USGS Topo · 1:62,500
1944 · Saddle Point
USGS Topo · 1:62,500
1944 · Ornbaun
USGS Topo · 1:62,500
1947 · Santa Rosa
USGS Topo · 1:250,000
1949 · Santa Rosa
USGS Topo · 1:250,000
1957 · Ukiah
USGS Topo · 1:250,000
1958 · Santa Rosa
USGS Topo · 1:250,000