
Boonville and Philo anchor the agricultural landscape of Anderson Valley in the early 1940s, a region defined by its narrow valley floor and expansive timbered ridges. The settlement pattern reveals a series of established family holdings and ranching outposts like Greenfield Ranch, Linda Loma Ranch, and the Old Wright Place, which are scattered throughout the surrounding uplands. The timber industry's footprint is evident at Philbrick Mill, while the community's social structure is traced through rural education centers such as Anderson Valley Sch, Con Creek Sch, and Pine Ridge Sch.
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1920 · Glenblair
USGS Topo · 1:62,500
1920 · Ukiah
USGS Topo · 1:62,500
1922 · Willits
USGS Topo · 1:62,500
1938 · Hopland
USGS Topo · 1:62,500
1942 · Willits
USGS Topo · 1:62,500
1943 · Point Arena
USGS Topo · 1:62,500
1943 · Glenblair
USGS Topo · 1:62,500
1943 · Pomo
USGS Topo · 1:62,500
1943 · Navarro
USGS Topo · 1:62,500
1943 · Hopland
USGS Topo · 1:62,500