Eldorado National Forest


Eldorado National Forest

Infobox_protected_area | name = Eldorado National Forest
iucn_category = VI


caption =
locator_x =
locator_y =
location =
nearest_city = Pollock Pines, California
lat_degrees = 38
lat_minutes = 45
lat_seconds = 01
lat_direction = N
long_degrees = 120
long_minutes = 20
long_seconds = 00
long_direction = W
area =
established = July, 1910
visitation_num =
visitation_year =
governing_body = US Forest Service

Eldorado National Forest is a U.S. National Forest located in the central Sierra Nevada Mountains in California. Portions of Alpine, Amador, El Dorado, and Placer counties lie within the Forest Boundary. The forest is bordered on the north by the Tahoe National Forest, on the east by the Lake Tahoe Basin Management Unit, on the southeast by the Humboldt-Toiyabe River, and to the south by the Stanislaus National Forest. Forest headquarters are located in Placerville, California. The forest was established on July 28, 1910 from a portion of Tahoe National Forest and other lands. [citation|title=PDFlink| [http://www.foresthistory.org/Research/usfscoll/places/National%20Forests%20of%20the%20U.S.pdf National Forests of the United States] |341 KB|date=September 29, 2005|author=Davis, Richard C.|publisher=The Forest History Society]

Climate

A Mediterranean climate extends over most of the forest with warm, dry summers and cold, wet winters.

* Annual precipitation: 40–70 inches (1,000 to 1,800 mm) on average.:* Precipitation falls mainly from October through April.
* Temperature range: 0 °F (-20 °C in winter to 100 °F (-20 °C).
* Snow pack: 5 to 10 feet (1.5 to 3 m) on average, can be as high as 15 feet (4.5 m).:* Snow is present from December to May at elevations above 6,000 feet (1,800 m).

Elevation

The Forest ranges in elevation from 1,000 feet (300 m) in the foothills to more than 10,000 feet (3,000 m) above sea level along the Sierra crest. The mountainous topography is broken by the steep canyons of the Mokelumne, Cosumnes, American, and Rubicon rivers. Plateaus of generally moderate relief are located between these steep canyons.

Land ownership

A complicated ownership pattern exists. The parcels of Other Ownership (private or other Agency land) are mostly isolated and surrounded on all sides by government land. An opposite pattern occurs outside of the Forest Boundary where several small scattered pieces of National Forest lands are separated from the main body and surrounded by lands of Other Ownership.

* Gross area: 786,994 acres (3,185 km²)
* Other ownership: 190,270 acres (770 km²)
* Net area: 596,724 acres (2,415 km²)

Vegetative types

The principle vegetative types found on the Forest are woodland, chaparral, mixed conifer, true fir, and subalpine. A wide variety of hardwoods, brush, grasses, and forbs are mixed in with each of these forest types.

The major commercial Forest species are white fir, red fir, ponderosa pine, Jeffrey pine, sugar pine, Douglas fir, and incense cedar.

Water

Water is a major resource of the Eldorado National Forest. The average acre on the Forest receives about 56 inches (1.4 m) of precipitation annually. Average annual runoff is about 29 inches (737 mm). This is equal to an annual water yield of 2.4 acre-feet per acre (737,000 m³/km²); therefore National Forest lands yield an estimated 1,444,000 acre-feet (1.8 km³) annually.

* 611 miles (983 km) of fishable streams in four major drainage systems: Middle Fork of the American River (including the Rubicon), South Fork of the American River, Cosumnes River, and North Fork of the Mokelumne River.
* 297 lakes and reservoirs (including both public and private land), which total 11,994 acres (48.5 km²). 11 large reservoirs account for 9,000 acres (36 km²). The rest are mostly small, high mountain lakes.

Transportation

The Eldorado has a high density transportation system containing 2,367 miles (3809 km) of roads and 349 miles (562 km) of trails. Roads under Forest Service jurisdiction total 2,158 miles. There are 209 miles (336 km) of county roads and another 400 miles (640 km) of private roads within the Forest boundary.

References

External links

* [http://www.fs.fed.us/r5/eldorado Eldorado National Forest home page]
* [http://gorp.away.com/gorp/resource/us_national_forest/ca_eldor.htm Eldorado National Forest] at [http://Away.com Away.com]
* [http://www.visit-eldorado.com/eldoradoforest_map.html Map] at El Dorado County Visitors Authority


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