
Mendocino National Forest defines this high-elevation landscape where the borders of Trinity, Tehama, and Mendocino counties converge. This 2021 survey illustrates a region characterized by a complex network of ridges and water sources, including Hammerhorn Lake and Howard Lake in the western reaches. The presence of specialized terrain features like Irish Glade and Minnie Glade near Buck Rock suggests specific meadow or clearing ecosystems amidst the timber. A series of established paths, such as the Smokehouse Ridge Trl and Hammerhorn Ridge Trl, provide access across the steep divides of Sugar Ridge and Pony Ridge. The map details the headwaters of numerous drainages, notably Beaver Cr and Thomes Cr, which carve through the elevations near Slanes Flat and Forks Ridge, highlighting the area's role as a vital watershed.
54 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1890 · Red Bluff
USGS Topo · 1:250,000
1894 · Red Bluff
USGS Topo · 1:250,000
1926 · Covelo
USGS Topo · 1:62,500
1931 · Hoaglin
USGS Topo · 1:96,000
1935 · Hoaglin
USGS Topo · 1:125,000
1952 · Covelo
USGS Topo · 1:62,500
1952 · Anthony Peak
USGS Topo · 1:62,500
1953 · Blackrock Mtn
USGS Topo · 1:62,500
1954 · Blackrock Mtn
USGS Topo · 1:62,500
1954 · Yolla Bolly
USGS Topo · 1:62,500