Cathco Pub. Co.,

Goodtimes Home Video,

Imagesmith,

Beautiful America Pub. Co.,

National Park Service, Pacific Northwest Region,

Northwest Illustrated,

Mount St. Helens Geological Area, Gifford Pinchot National Forest, U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Region,

U.S. Dept. of the Interior, Geological Survey ; For sale by the Supt. of Docs., U.S. G.P.O.,

U.S. Dept. of the Interior, Geological Survey ; For sale by the Supt. of Docs, U.S. G.P.O.,

KC Publications,

U.S. Dept. of the Interior, Geological Survey ; Free on application to Branch of Distribution, U.S. Geological Survey,

U.S. Dept. of the Interior, U.S. Geological Survey ; For sale by U.S. Geological Survey, Information Services,