Mountain pocket gopher
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The mountain pocket gopher is a species of rodent in the family Geomyidae. It is endemic to California and Nevada. The Sierra Nevada are part of its range.
The Dalles pocket gopher and its influence on forage production of Oregon mountain meadows
Lassen Peak
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Lassen Peak, commonly referred to as Mount Lassen, is a 10,457-foot lava dome volcano in Lassen Volcanic National Park in Northern California. Located in the Shasta Cascade region above the northern S
Lassen Peak volcano in 2020
Aerial view of Mount Lassen with snow, early May 2018
Lassen Peak's northeastern face
Dacitic volcanic rock on Lassen Peak's summit