found: Longman, Hurst, Rees, and Orme. N. America, 1807:map recto (Stoney Mountains)
found: Oxford Atlas of the World, 2008(range; 49°00ʹ00ʺN 115°00ʹ00ʺW)
found: Montana Outdoors, the magazine of Montana Fish, Wildlife & Parks, viewed on the web November 18, 2016:Cronenwett. "Where Prairie Meets Mountain" 2015 (Many define the Front as the forested and mountainous public land west of Great Falls and U.S. Highways 89 and 287, with the southern boundary as Montana Highway 200 at roughly Rogers Pass and the northern boundary as U.S. Highway 2 around Browning. While convenient, this definition is limiting and arbitrary. Ecologists extend the Front's northern boundary well into Alberta, to about the community of Pincher Creek, and include the largely undisturbed and mostly privately-owned native grasslands abutting the mountains. The Front is also the drier, eastern edge of the massive 20-million-acre Crown of the Continent ecosystem, which straddles the international boundary and contains an awe-inspiring array of topography, ecotypes, and wildlife.)
found: Penfold. Final Resource Management Plan/Environmental Impact Statement for the Headwaters Resource Area, Butte District, Montana. 1983:p. 46 (Oil and Gas Leasing and Development. Rationale: The Rocky Mountain Front is a nationally significant area because of its high wildlife, recreation, and scenic values. It is also an area of high potential for oil and gas production, although to date, exploration of the area has yielded inconclusive results.)
notfound: GNIS;Col. gaz. web site