
Six Rivers National Forest dominates this landscape in Trinity County, where mountainous terrain meets the headwaters of several critical drainages. The small community of Zenia and the broader Kettenpom Valley serve as the primary human anchors, connected by a network of forest roads and light-duty routes. Educational and civic life is centered at the Hoaglin-Zenia School, while the presence of the Atkinson Historical Site and the former Clover School (Site) provides a window into the area's earlier rural development.
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1918 · Anada
USGS Topo · 1:62,500
1920 · Harris
USGS Topo · 1:62,500
1921 · Hoaglin
USGS Topo · 1:62,500
1922 · Island Mountain
USGS Topo · 1:62,500
1931 · Hoaglin
USGS Topo · 1:96,000
1935 · Hoaglin
USGS Topo · 1:125,000
1949 · Blocksburg
USGS Topo · 1:62,500
1949 · Alderpoint
USGS Topo · 1:62,500
1951 · Alderpoint
USGS Topo · 1:62,500
1951 · Blocksburg
USGS Topo · 1:62,500