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Raton Mesa is the collective name of several mesas on the eastern side of Raton Pass in New Mexico and Colorado. The name Raton Mesa or Mesas has sometimes been applied to all the mesas that extend east for along the Colorado-New Mexico border from Raton, New Mexico and Trinidad, Colorado to the Oklahoma panhandle. These include Johnson Mesa, Mesa de Maya, and Black Mesa.〔Keyes, Charles R. (1919), "The Hanging Gardens of the Mesa de Maya'', ''The Geographic Review'', Vol. 8, No. 3, pp. 145-152. Downloaded from JSTOR.〕 The highest point of Raton Mesa, Fishers Peak, is located in Las Animas County, Colorado. The highest part of the mesa () was made a National Natural Landmark in 1967. Raton mesas are volcanic in origin caused by lava flows which solidified into basalt. Over time the softer sedimentary rock surrounding the basalt eroded leaving several distinct large elevated tablelands with precipitous sides.〔Lee, Willis T. "The Raton Mesas of New Mexico and Colorado" ''Geographic Review'', Vol 11, No 3 (July 1921), pp. 384-397〕 Raton Mesa is part of the Raton Basin a coal and natural gas producing region. ==Description== Interstate Highway 25 through Raton Pass, in elevation, separates the foothills of the Sangre de Cristo Mountains to the west from the mesa country on the east. For this article, Raton Mesa is defined as the area east of Interstate 25 between Trinidad, Colorado and Raton, New Mexico, approximately south to north, and extending eastwards about . Within this area are three distinct mesas separated by deep canyons: Fishers Peak Mesa in Colorado, with a maximum elevation of , Bartlett Mesa, mostly in New Mexico, with a maximum elevation of , and Barela/Horseshoe/Horse Mesa, straddling the Colorado/New Mexico state line, with a maximum elevation of . The elevations at the foot of the mesas are or higher.〔Google Earth〕 The flat-topped mesas are mostly grassland, but their steep slopes are wooded with ponderosa pine the dominant species, joined by quaking aspen, Douglas fir, and white fir at higher elevations and pinyon, juniper, and Gambel oak at lower elevations. Mammal species include American black bear, cougar, mule deer, beaver, and especially elk which are seen in herds of more than 100 individuals.〔Jones, Cheri A. (2002) "Mammals of the James M. John and Lake Dorothey State Wildlife Areas, Las Animas County, Colorado", ''Proceedings of the Denver Museum of Nature and Science'', Series 4, No. 3, pp. 1-14〕 Hunting, especially for elk, is popular in season on both public and private lands.〔Hunting in Las Animas County, Colorado. Sangres.com. http://www.sangres.com/stateco/lasanimas.htm#.VOtPPPldW3k, accessed 23 Feb2015〕 No public roads reach the top of the mesas. The only public road which penetrates the area is through Sugarite Canyon State Park in New Mexico. It terminates shortly after crossing the border into Colorado at an altitude of . This road provides access to the three publicly owned areas of Raton Mesa: Surgarite Canyon State Park in New Mexico and Lake Dorothey State Wildlife Area and James M. John State Wildlife Area in Colorado.〔"Colorado Parks and Wildlife", http://www.cpw.state.co.us/swa/Lake%20Dorothey%20SWA, accessed 23 Feb 2015〕 From the parking area at Lake Dorothey, the summit of Fisher's Peak is a straight-line distance of about eight miles by an unmarked trail.〔Google Earth〕 Most of the land of the Raton Mesas area is privately owned. The largest landowner in Colorado is the Crazy French Ranch of , most of which is on top or on the slopes of the Raton mesas. The ranch owns a herd of 150 bison which roam its property.〔Land and Ranch Brokerage http://www.field-brokers.com/#!crazy-french-ranch/c1ytd, accessed 23 Feb 2015〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Raton Mesa」の詳細全文を読む スポンサード リンク
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