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Comanche National Grassland
Comanche National Grassland is a National Grassland located in southeastern Colorado, United States. It is the sister grassland of Cimarron National Grassland and contains both prairie grasslands and canyons. It is separated into two sections, each operated by a local ranger district, one of which is in Springfield and the other of which is in La Junta. The grassland is administered by the Forest Service together with the Pike and San Isabel National Forests, and the Cimarron National Grassland, from common headquarters located in Pueblo, Colorado.
==Geography==
Comanche National Grassland consists of in two units: (1) Timpas, south of La Junta, and (2) Carrizo, south of Springfield.〔(accessed Jan 20, 2011 )〕 Both units have privately owned tracts of ranchland mixed in with the government-owned land.
Elevations on the grassland range from in the southeastern corner of the Carrizo Unit on the Oklahoma border to on Fallas Mesa in the northwestern art of the same unit.〔DeLorme, Topo, 6.0〕 Average annual precipitation on the grassland ranges from at La Junta to at Springfield. Summer temperatures are hot with the average high above ; winters are cold with average low temperatures in January below .〔(accessed Jan 20, 2011 )〕 Vegetation is mostly steppe and shortgrass prairie, although pinyon and juniper trees are found in rocky canyons and cottonwoods and willows grow near streams. Western soapberry and netleaf hackberry are common in some areas near canyon bottoms, as well as some larger Gambel oak. Chickasaw plum and fragrant mimosa are occasional on uplands within grass cover. A few ponderosa pines are found on cool, moist hillsides. Wildlife on the grassland includes pronghorn, prairie dogs, lesser prairie chickens, mule deer, elk, wild turkey, golden eagle, swift fox, and infrequent roadrunners.〔(accessed Jan 20, 2011 )〕 Three hundred and twenty-eight species of birds, including many Eastern birds at the limit of their range, have been recorded in Baca County where most of the Carrizo unit is located.〔(【引用サイトリンク】title=Checklist of the Birds of Colorado: Baca County )〕
Most of the Carrizo Unit is in the watershed of Carrizo Creek, a tributary of the Cimarron River. The Timpas Unit is in the watershed of the Purgatoire River, also called the Purgatory and Picketwire River.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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