found: Work cat.: 99463217: Arctic Slope, Alaska oil & gas development map, 1982.
found: Columbia gaz.(Alaska North Slope or Arctic North Slope, region, N Alaska, bet. the Arctic Ocean and the Brooks Range)
found: MW geog. dict.(North Slope, also Arctic Slope, coastal region, N Alaska, bet. Brooks Range and the Arctic Ocean)
found: Academic American encyc., 1997 ed.:v. 1, p. 241 ("Alaska may be divided into four geographic regions--the Pacific mountain system ... the central region ... the Brooks Range ... and the Arctic coastal plain, or North Slope.")
found: Encyc. Americana, 1997 ed.:v. 1, p. 458 ("Arctic Alaska includes the northern foothills of the Brooks Range, the Arctic Coastal Plain (or North Slope), and the coasts of the Chukchi Sea and Kotzebue Sound.")
notfound: GNIS;Lippincott