Tenaja Canyon Creek[1] Tenaja Canyon
Map of San Mateo Creek and Arroyo San Onofre drainage basins. San Mateo Creek basin is in dark green.
Location
Country	United States
State	California
Region	Riverside County
Physical characteristics
Source	at the head of Tenaja Canyon, at the confluence of arroyos from El Potrero del Tenaja, Redonda Mesa and Tenaja Mountain highlands.
• coordinates	33°30′23″N 117°21′51″W / 33.50639°N 117.36417°W / 33.50639; -117.36417
• elevation	1,875 ft (572 m)
Mouth	confluence with San Mateo Creek near Fishermans Camp
• coordinates	33°31′46″N 117°24′32″W / 33.52944°N 117.40889°W / 33.52944; -117.40889
• elevation	1,112 ft (339 m)
Length	3.5 mi (5.6 km)
Discharge
• location	Pacific Ocean
Basin features
Tributaries
• right	unnamed arroyo from Tenaja Mountain highlands, unnamed arroyo from Tenaja Mountain highlands

Tenaja Canyon Creek, a stream or arroyo, tributary to San Mateo Creek, in the Cleveland National Forest in Riverside County, California. Its source is at an altitude of 1875 feet. The creek has its source at the confluence of arroyos from El Potrero del Tenaja, Redonda Mesa and Tenaja Mountain highlands.^[2] and it flows northwestward 3+1⁄2 miles down Tenaja Canyon to its mouth and its confluence near Fishermans Camp, at an elevation of 1112 feet with San Mateo Creek.^[3][4] The word may refer to the arroyo El Portero del Tenaja or to the topographic structure.