Geological Survey Professional Paper 705—A Inventory of Glaciers in the North Cascades, Washington

GLACIERS IN THE UNITED STATES

INVENTORY OF GLACIERS IN THE NORTH CASCADES, WASHINGTON

By AUSTIN POST, DON RICHARDSON, WENDELL V. TANGBORN, and F. L. ROSSELOT

Perennial bodies of ice in the North Cascades having areas of at least 0.1 km² (square kilometer) are tabulated and classified. The inventory, a contribution to the International Hydrological Decade, includes 756 glaciers, covering 267 km², about half of the glacier area in the United States south of Alaska. Listings include each glacier's location, drainage basin, area, length, orientation, altitude, and classification as to form, source, surface, nature of terminus, and activity. These glaciers contribute annually about 800 million cubic meters of water to streamflow in the State of Washington.