Copper Creek (also called the Copper River, natively called Chwuloq'e, for chinook salmon) is a southern tributary of the Klamath River in the U.S. state of California. Arising in the Klamath Mountains, the creek drains a narrow watershed of about . Historically, Copper Creek was the site of at least one Hupa Native American village, then was extensively mined for gold in the 1850s. The origin of the name comes from the peach-colored cliffs that line the lower few miles of the canyon.