Olympus Mons Mons aureole deposits (discussed below). Olympus Mons lies at the edge of the Tharsis bulge, an ancient vast volcanic plateau likely formed by the end of the Noachian Period. During the Hesperian, when Olympus Mons began to form, the volcano was located on a shallow slope that descended from the high in Tharsis into the northern lowland basins. Over time, these basins received large volumes of sediment eroded from Tharsis and the southern highlands. The sediments likely contained abundant Noachian-aged phyllosilicates (clays) formed during an early period on Mars when surface water was abundant, and were thickest in the northwest
Mount Olympus (Washington) Congress designated 95% of the park as the Olympic Wilderness. Mount Olympus (Washington) Mount Olympus, at 7,980 feet, is the tallest and most prominent mountain in the Olympic Mountains of western Washington state. Located on the Olympic Peninsula, it is also the central feature of Olympic National Park. Mount Olympus is the highest summit of the Olympic Mountains; however, peaks such as Mount Constance, on the eastern margin of the range, are better known, being visible from the Seattle metropolitan area. With notable local relief, Mount Olympus ascends over from the elevation confluence of the Hoh River with Glacier Creek