Mineral resource potential of the Caribou Wilderness and Trail Lake Roadless Area, Lassen and Plumas counties, California
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Open-File Report↗
Geology topics
J.L. Ritchey
Publications and source records attributed to J.L. Ritchey.
Mineral resource potential of the Lake Eleanor Roadless Area, Trinity County, California
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Open-File Report↗
Mineral resource potential of the Fisher Gulch Roadless Area, Trinity County, California
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Open-File Report↗