|Spenceville Wildlife Area|
IUCN category IV (habitat/species management area)
|Nearest city||Marysville, California|
|Area||11,448 acres (46.33 km2)|
|Governing body||California Department of Fish and Wildlife|
The Spenceville Wildlife Area is an 11,448-acre (46.33 km2) wildlife preserve managed by the California Department of Fish and Wildlife. It is located in the Sierra Nevada Foothills, within Nevada County and Yuba County of northern California.
The preserve is approximately 18 miles (29 km) east of the town of Marysville and Beale Air Force Base in the eastern Sacramento Valley. The elevation of the area varies from 200–1,200 feet (61–366 m).
Spenceville is a foothill oak woodland of Blue oak (Quercus douglasii) and Foothill gray pine (Pinus sabiniana), and a grassland habitat. It is notable for many species of native birds and wildflowers, including the California endemic Yellow mariposa lily (Calochortus luteus).
The geology of the Spenceville area is part of the Smartville Block formed during the Middle Jurassic epoch 200 million years ago. The Smartville Block is a part of the California Mother Lode for gold, and consequently Spenceville has had its share of mining activity.Cleanup from copper and zinc mining continues to this day.
The area was originally home to the Maidu and Nisenan Native Americans and evidence of their grinding holes and lodge pits still exist.
Spenceville hosts a variety of activities: hiking, biking, hunting, hunting dog field trials, target shooting, camping, equestrian trail riding, birding, and primitive camping.A popular trail leads to a double waterfall called Fairy Falls (a.k.a. Beale Falls, Shingle Falls, or Dry Creek Falls). There can be a high level of rattlesnakes seasonally.
The Spenceville Wildlife Area may be environmentally impacted by the Waldo Dam Project proposed by the Yuba County Water Agency, and by housing development proposed between Beale Air Force Base and the wildlife area.
Nevada County is a county in the Sierra Nevada of the U.S. state of California. As of the 2010 census, the population was 98,764. The county seat is Nevada City. Nevada County comprises the Truckee-Grass Valley, CA Micropolitan Statistical Area, which is also included in the Sacramento-Roseville, CA Combined Statistical Area, part of the Mother Lode Country.
Yuba County is a county in the U.S. state of California. As of the 2010 U.S. Census, the population was 72,155. The county seat is Marysville. Yuba County is included in the Yuba City, California Metropolitan Statistical Area, which is also included in the Sacramento–Roseville, California Combined Statistical Area. The county is in the Central Valley region along the Feather River.
The Gold Country is a historic region in the northern portion of the U.S. state of California, that is primarily on the western slope of the Sierra Nevada. It is famed for the mineral deposits and gold mines that attracted waves of immigrants, known as the 49ers, during the 1849 California Gold Rush.
The Sacramento National Wildlife Refuge Complex is part of the United States system of National Wildlife Refuges (NWR). It is located in northern California, in the valley of the Sacramento River.
Calochortus is a genus of flowering plants in the lily family. The group includes herbaceous, perennial and bulbous species, all native to North America.
The Sutter Buttes are a small circular complex of eroded volcanic lava domes which rise as buttes above the flat plains of the Sacramento Valley in Sutter County, Northern California. They are situated just outside Yuba City in the northern part of the state's Central Valley.
The Greenhorn Mountains are a mountain range of the Southern Sierra Nevada, in California. They are protected within the Sequoia National Forest.
Smartsville is a census-designated place in Yuba County, California, in the foothills of the Sierra Nevada. It is one of the many historic towns in California's gold country, and is today a California Historical Landmark. Located at an altitude of 669 feet (204 m), Smartsville lies about 15 miles (24 km) east-northeast of Marysville, along State Route 20. The population was 177 at the 2010 census.
Big Chico Creek is a creek in northeastern California that originates near Colby Mountain in Lassen National Park. It flows 46 miles (74 km) to its confluence with the Sacramento River in Butte County. The creek's elevation declines from 5,000 feet (1,500 m) above sea level at its head to 120 feet (37 m) where it joins the Sacramento River, as shown on the Ord Ferry USGS quadrangle. Big Chico Creek forms part of the demarcation between the Sierra Nevada and the Cascade Range.
Calochortus luteus, the yellow mariposa lily, is a mariposa lily endemic to California.
Elkhorn Slough is a 7-mile-long (11 km) tidal slough and estuary on Monterey Bay in Monterey County, California. It is California's second largest estuary and the United States' first estuarine sanctuary. The community of Moss Landing and the Moss Landing Power Plant are located at the mouth of the slough on the bay.
Calochortus striatus, known by the common name alkali mariposa lily, is a species of mariposa lily native to California and into Nevada.
Calochortus clavatus is a species of mariposa lily known by the common name clubhair mariposa lily. It is endemic to California where it is found in forests and on chaparral slopes.
Calochortus monophyllus is a North American species of flowering plants in the lily family known by the common name yellow star-tulip.
Calochortus superbus is a North American species of flowering plants in the lily family known by the common name superb mariposa lily. It is endemic to California, a common member of the flora in several types of habitat across much of the state. It is most abundant in the Coast Ranges and in the Foothills of the Sierra Nevada.
Calochortus vestae is a California species of flowering plants in the lily family known by the common name coast range mariposa lily. It is grows primarily in the forests of the North Coast Ranges of California, with additional populations in the southernmost Cascades in Shasta County and also in foothills of the Sierra Nevada. It generally grows in clay soils.
The North Table Mountain Ecological Reserve is a nature reserve of 3,315 acres (13.42 km2) located three miles (5 km) north of Oroville, in Butte County, northern California. The land was acquired by the state in October, 1993.
Table Mountain is a mountainous landscape feature in Tuolumne County, California near the town of Jamestown. Table Mountain is an inverted valley, an elevated landform which follows the former contours of a river valley above level of the surrounding topography, rather than below it. It was created by lava flows which filled an ancient river bed. The resulting igneous rock resisted erosion better than the materials around it, leaving behind a sinuous rock formation elevated above the surrounding landscape.
Lime Kiln Creek is a stream within Tulare County in central California. An alternative name for this creek is Dry Creek.