U.S. Geological Survey topographic maps give you a choice on the height of Mount Isto. Depending on what map scale you choose, the mountain in the Brooks Range is either higher or lower than 9,000 ...

a, Initial bed topography; a 50-km-wide, 1,000-m-high annular coastal mountain range surrounding a 200-km-wide, 400-m-high basin is dissected by four ∼ 20-km-wide (at half height) valleys with ...