This historical map portrays the area of Twitchell Dam in 2012, primarily covering Santa Maria as well as portions of Garey. 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 Twitchell Dam 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.
1905 · Lompoc
USGS Topo · 1:125,000
1922 · Nipomo
USGS Topo · 1:62,500
1937 · Branch Mtn
USGS Topo · 1:48,000
1942 · Lompoc
USGS Topo · 1:125,000
1942 · Santa Maria
USGS Topo · 1:62,500
1942 · Branch Mountain
USGS Topo · 1:62,500
1942 · Tepusquet Peak
USGS Topo · 1:62,500
1943 · Tepusquet Peak
USGS Topo · 1:62,500
1943 · Lompoc
USGS Topo · 1:125,000
1947 · Careaga Canyon
USGS Topo · 1:24,000