Visitation Planning and Research
Impacts of Visitor Spending on Local Economy: Crater Lake National Park, Daniel Stynes and Ya-Yen Sun, 2002.
Social Impacts of Design Alternatives, Crater Lake N.P.,Visitor Behavior and Management Alternatives at Crater Lake N.P., Bo Shelby and Donald W. Wolf, 1981.
Analysis of the National Park Service Recreation Fee System, 1977.
Visitor Services Plan November 1999 Crater Lake National Park, Oregon U.S. Department of the Interior * National Park Service
Draft Visitor Services Plan, Environmental Impact Statement, Crater Lake National Park, Oregon (PDF file). U.S. Dept. of the Interior, National Park Service, 1997
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