On October 29, 1772, Colonel Pedro Fages headed east from San Diego searching for
army deserters. It was the first
entry by Europeans into Oriflamme Canyon. From there,
Fages and his men travelled on through Cajon Pass, around
the Mojave and the Central Valley, and eventually reached
Mission San Luis Obispo. As a result, he discovered the Colorado Desert
and the San Joaquin Valley.
Plaque placed by the State Department of Parks and Recreation in cooperation with the San Diego Historical Society, Congress of History, and the Native Sons of the Golden West, March 18, 1973.