The first sport ski area in the western hemisphere was in the Sierra Nevada. By 1860, races were being held in the Plumas-Sierra region. The mining towns of Whiskey Diggings, Poker Flat, Port Wine, Onion Valley, La Porte, Jamison City, and Johnsville organized the earliest ski clubs and annual competitions.

California Registered Historical Landmark No. 723

Plaque placed by the California State Park Commission
In cooperation with the California Historical Society,
Plumas County Historical Society, and the Plumas Ski Club
February 12, 1961