Kern River

Kern River Río de San Felipe, La Porciúncula, Po-sun-co-la, Porsiuncula River[1]
Panorama of the upper Kern River
Map of the San Joaquin and Tulare Basin region with the Kern River highlighted. Some rivers shown are intermittent or normally dry. A few selected canals are shown. Below: Map of the San Joaquin and Tulare Basin region showing the old lakes and river courses.
Location
Country	United States
State	California
Region	Sierra Nevada, San Joaquin Valley
District	Tulare County, Kern County
City	Bakersfield
Physical characteristics
Source	Kings-Kern Divide
• location	Sequoia National Park
• coordinates	36°41′48″N 118°23′53″W / 36.69667°N 118.39806°W / 36.69667; -118.39806[2]
• elevation	13,608 ft (4,148 m)[3]
Mouth	Buena Vista Lake Bed
• location	San Joaquin Valley
• coordinates	35°16′4″N 119°18′25″W / 35.26778°N 119.30694°W / 35.26778; -119.30694[2]
• elevation	299 ft (91 m)[2]
Length	164 mi (264 km)[2]
Basin size	3,612 sq mi (9,360 km2)[4]
Discharge
• location	Near Democrat Springs, CA[5]
• average	946 cu ft/s (26.8 m3/s)[5]
• minimum	10 cu ft/s (0.28 m3/s)
• maximum	47,000 cu ft/s (1,300 m3/s)
National Wild and Scenic River
Type	Wild, Scenic, Recreational
Designated	November 24, 1987

The Kern River, previously Río de San Felipe, later La Porciúncula, is an Endangered, Wild and Scenic river in the U.S. state of California, approximately 165 miles (270 km) long. It drains an area of the southern Sierra Nevada mountains northeast of Bakersfield. Fed by snowmelt near Mount Whitney, the river passes through scenic canyons in the mountains and is a popular destination for whitewater rafting and kayaking. It is the southernmost major river system in the Sierra Nevada, and is the only major river in the Sierra that drains in a southerly direction.

The Kern River formerly emptied into the now dry Buena Vista Lake and Kern Lake via the Kern River Slough, and Kern Lake in turn emptied into Buena Vista Lake via the Connecting Slough at the southern end of the Central Valley. Buena Vista Lake, when overflowing, first backed up into Kern Lake and then upon rising higher drained into Tulare Lake via Buena Vista Slough and a changing series of sloughs of the Kern River. The lakes were part of a partially endorheic basin that sometimes overflowed into the San Joaquin River.^[6] This basin also included the Kaweah and Tule Rivers, as well as southern distributaries of the Kings River that all flowed into Tulare Lake.

Since the late 19th century the Kern has been almost entirely diverted for irrigation, recharging aquifers, and the California Aqueduct, although some water empties into Lake Webb and Lake Evans, two small lakes in a portion of the former Buena Vista Lakebed. The lakes were created in 1973 for recreational use. The lakes hold 6,800 acre⋅ft (8,400 dam³) combined.^[7] Crops are grown in the rest of the former lakebed. In extremely wet years the river will reach the Tulare Lake basin through a series of sloughs and flood channels.

Despite its remote source, nearly all of the river is publicly accessible. The Kern River is particularly popular for wilderness hiking and whitewater rafting. The Upper Kern River is paralleled by trails to within a half-mile of its source (which lies at 13,600 feet (4,100 m)). Even with the presence of Lake Isabella, the river is perennial down to the lower Tulare Basin. Its swift flow at low elevation makes the river below the reservoir a popular location for rafting.