Monadnock , a geographic term, is an
isolated hill or a lone mountain comprised of bedrock rising above the surrounding area. It is an erosional remmnant of a mountain chain left behind because of its more erosion resistant rock.
... Amundsen, (1872-1928), Norwegian, first at the South Pole, first to navigate the Northwest Passage in a single ship
Roy Chapman Andrews, (1884-1960), US ...