The Big Sur River is a 15.7 miles (25.3 km) river

River

A river is a natural watercourse, usually freshwater, flowing towards an ocean, a lake, a sea, or another river. In a few cases, a river simply flows into the ground or dries up completely before reaching another body of water. Small rivers may also be called by several other names, including...

 on the Central Coast of California

Central Coast of California

The Central Coast is an area of California, United States, roughly spanning the area between the Monterey Bay and Point Conception. It extends through Santa Cruz County, San Benito County, Monterey County, San Luis Obispo County, and Santa Barbara County...

. The river drains a portion of the Big Sur

Big Sur

Big Sur is a sparsely populated region of the Central Coast of California where the Santa Lucia Mountains rise abruptly from the Pacific Ocean. The name "Big Sur" is derived from the original Spanish-language "el sur grande", meaning "the big south", or from "el país grande del sur", "the big...

 area, a thinly settled region of the Central California coast where the Santa Lucia Mountains

Santa Lucia Mountains

The Santa Lucia Mountains or Santa Lucia Range is a mountain range in coastal California, running from Monterey southeast for 105 miles to San Luis Obispo. The highest summit is Junipero Serra Peak, in Monterey County...

 rise abruptly from the Pacific Ocean

Pacific Ocean

The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...

. The Big Sur River's headwaters are in the mountains, it flows roughly northwest and empties into the ocean, where there is a natural sandbar

Bar (landform)

A shoal, sandbar , or gravelbar is a somewhat linear landform within or extending into a body of water, typically composed of sand, silt or small pebbles. A spit or sandspit is a type of shoal...

 that has created a lagoon

Lagoon

A lagoon is a body of shallow sea water or brackish water separated from the sea by some form of barrier. The EU's habitat directive defines lagoons as "expanses of shallow coastal salt water, of varying salinity or water volume, wholly or partially separated from the sea by sand banks or shingle,...

. Tributaries of the river include Pfeiffer-Redwood Creek

Pfeiffer-Redwood Creek

Pfeiffer-Redwood Creek is a stream in Big Sur, California, about 26 miles from Carmel. It is a tributary to the Big Sur River. The creek feeds the 40-foot Pfeiffer Falls, inside of Julia Pfeiffer Burns State Park. It is named for John Pfeiffer, a homesteader who had of land in the Big Sur River...

, Juan Higuera Creek, Post Creek and Pheneger Creek.

Most of the river's 60 square miles (155.4 km²) watershed

Drainage basin

A drainage basin is an extent or an area of land where surface water from rain and melting snow or ice converges to a single point, usually the exit of the basin, where the waters join another waterbody, such as a river, lake, reservoir, estuary, wetland, sea, or ocean...

 is in the Ventana Wilderness

Ventana Wilderness

The Ventana Wilderness of Los Padres National Forest is a Federally designated wilderness area located in the Santa Lucia Mountains along the Central Coast of California. This wilderness was established in 1969 when the Ventana Wilderness Act abolished the Ventana Primitive Area and replaced it...

 of the Los Padres National Forest

Los Padres National Forest

Los Padres National Forest is a forest located in southern and central California, which includes most of the mountainous land along the California coast from Ventura to Monterey, extending inland...

. Precipitation

Precipitation (meteorology)

In meteorology, precipitation In meteorology, precipitation In meteorology, precipitation (also known as one of the classes of hydrometeors, which are atmospheric water phenomena is any product of the condensation of atmospheric water vapor that falls under gravity. The main forms of precipitation...

 increases with altitude at Big Sur and the higher elevations can receive over 50 inches (127 cm) per year, about 10 inches (25.4 cm) higher than lower areas. The average yearly runoff on the river is 65000 acre.ft. There are some diversions on the river and its tributaries for drinking water

Drinking water

Drinking water or potable water is water pure enough to be consumed or used with low risk of immediate or long term harm. In most developed countries, the water supplied to households, commerce and industry is all of drinking water standard, even though only a very small proportion is actually...

 to supply nearby homes and resorts, but no major dam

Dam

A dam is a barrier that impounds water or underground streams. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees are used to manage or prevent water flow into specific land regions. Hydropower and pumped-storage hydroelectricity are...

s or reservoirs.