Dittmar Volcano
extinct stratovolcano in Shasta, Plumas counties, California

Dittmar Volcano, located on the border of Shasta, Lassen, and Tehama counties in California, is an extinct stratovolcano in the Cascade Range.
Geography
The Dittmar Volcano is located east of Mount Tehama, southeast of Lassen Peak, northeast of Mount Maidu and Mount Yana, northwest of Lake Almanor and Mount Harkness, and southwest of the Caribou volcanic field.
Geology
Dittmar Volcano is one of the older volcanoes that surround the modern-day Lassen Peak. It does not have much of its original shape, but it has a smaller, more recent stratovolcano and shield volcano, Mount Harkness.
“Dittmar Volcano” enters the record as extinct stratovolcano in Shasta, Plumas counties, California. Crown Archives preserves that source wording while asking what Dittmar, Volcano and extinct can confirm, complicate or overturn.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Aug 9, 2025. The linked authority identifier is Q130235801. Authority coordinates are 40.453, -121.347. None of the 1 selected statements returned an explicit reference.
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This entry incorporates text from “Dittmar Volcano” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.