Remote Northeast California marks the southern limit of the Cascade Range, a chain of mountains that run up to British Columbia. The Cascades are part of the Pacific Ring of Fire, the ring of volcanoes around the Pacific Ocean. The range is still volcanically active:
Lassen Peak erupted in 1911. Half-way between Mt Shasta and Lassen Peak, is Mc Arthur-Burney Falls state park, one of California oldest. The wide waterfall over volcanic rock was called a wonder by Teddy Roosevelt.
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