Lassen Volcanic National Park and Lassen National Forest define the high-altitude landscape of this 2015 survey, where geological activity and historical travel routes converge. The terrain is marked by the dramatic volcanic features of Chaos Crags and the Chaos Crater, which sit above Manzanita Lake and Reflection Lake. This area was a critical passage for early travelers, as evidenced by the alignment of the Emigrant Road and the proximity of Noble Pass and Nobles Pass. The small settlement of Summertown sits near the intersection of Ca 44 and Ca 89, serving as a modern gateway to the peaks. From the northern extent of Grayback Ridge to the southern depths of Deep Hole, the map traces a complex network of forest service spurs, including the Ashpan Flat Spur and Table Spur, which highlight the region's history of land management and recreation.
56 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.
1886 · Lassen Peak
USGS Topo · 1:250,000
1892 · Lassen Peak
USGS Topo · 1:250,000
1894 · Lassen Peak
USGS Topo · 1:250,000
1935 · Burney
USGS Topo · 1:96,000
1935 · Paynes Creek
USGS Topo · 1:96,000
1939 · Burney
USGS Topo · 1:125,000
1939 · Halls Flat
USGS Topo · 1:125,000
1941 · Mineral
USGS Topo · 1:125,000
1955 · Westwood
USGS Topo · 1:250,000
1956 · Lassen Peak
USGS Topo · 1:62,500