Lar'amic, a river which rises in northern Colorado, flows generally NE. through south-eastern Wyoming, and enters the North Fork of the Platte at Fort Laramie, after a course of about 200 miles. It gives name to a large county of Wyoming; to the Laramie Plains, a treeless plateau of Wyoming, about 7500 feet above sea-level, and some 3000 sq. m. in extent; and to the Laramie Mountains, a Rocky Mountain range which bounds this plateau on the north and east. Laramie City, Wyoming, on this great plain, and on the Union Pacific Railroad, 573 miles W. of Omaha, has a rolling-mill and railway shops. Pop. 6388.
LARAMIE BEDS, the name given by American geologists to certain strata which appear to be intermediate in age between the Cretaceous and Tertiary. The strata are well developed in Utah and Wyoming, and consist chiefly of lacustrine strata; they contain numerous seams of lignite, and hence are often called the lignitic series. While the vertebrate remains of the Laramie are essentially Mesozoic in character, the plants are just as unequivocally Tertiary. It would seem from this that a Tertiary flora was contemporaneous with a Cretaceous fauna.