RICHARDSON MOUNTAINS

range of the Canadian Rocky Mountains that parallels the northernmost part of the boundary of the Yukon and Northwest Territories, northwestern Canada. Trending northwest-southeast, the Richardson Mountains are the northern extremity of the Rockies. They rise to an elevation of 4,067 feet (1,240 m). The range was named in 1825 by John Franklin for Sir John Richardson, surgeon, naturalist, and Arctic explorer, a member of two of Franklin's overland expeditions.