Note 90 — Chapter V · [1]

By the Klameth (Klamath) is intended the present Siskiyou Mountains, which branch off from Sierra Nevada toward the coast in about latitude 42°, the boundary between California and Oregon. The country between the Rockies and California had not then been explored, but there was an erroneous idea of a transverse chain of mountains which was confused with the Sierra Nevada; see our volume xxviii, p. 305, note 182.—Ed.