Water-supply studies for Ross Lake and Lake Chelan National Recreation Areas and North Cascades National Park during fiscal year 1971
USGS. 1971. Water-supply studies for Ross Lake and Lake Chelan National Recreation Areas and North Cascades National Park during fiscal year 1971. US Geological Survey, Water resources division. Tacoma, WA
Availability of ground water and surface-water supplies. An early ground water supply survey by US Geological Survey for purposes of water supply wells.