U.S. Route 97 (US 97) is a United States Numbered Highway, stretching from Weed, California to the Canadian border in Oroville, Washington. The California portion of US 97 runs north from I-5 in Weed to the Oregon state line. This is the majority of a shortcut between I-5 and Klamath Falls, Oregon, added to both states' state highway systems in 1931. It was designated as US 97 in 1935, replacing an east–west section in southern Oregon.