________. ________. Environmental Assessment, Development Concept Plan, Amendment to the General Management Plan, Crater Lake National Park. February, 1984.
________. ________. Final Environmental Statement, Proposed Wilderness, Crater Lake National Park , Ore on FES 74-33. June 13, 1974.
________. ________. General Management Plan, Crater Lake National Park, Oregon. December, 1977.
________. ________. Historic Resource Study: Crater Lake National Park, Oregon, by Linda W. Greene. June, 1984.
________. ________. Historic Structure Report: Crater Lake National Lodge, Crater Lake National Park, Crater Lake, Oregon, by David Arbogast, Linda W. Green, Catherine H. Blee, and James M. Ellis. April, 1984.
________. ________. Historical Listing of National Park Service Officials. May 1, 1986.
________. ________. Historical Studies Plan, Crater Lake National Park, by Vernon C. Tancil. May 3, 1979.
_______. _______. Interim Development Concept Plan, Amendment to the General Management Plan, Crater Lake National Park, Oregon. April, 1985.
________. ________. Interpretive Prospectus: Crater Lake National Park, Oregon. May, 1972.
________. ________. Interpretive Prospectus: Crater Lake National Park, Oregon. May, 1980.
________. ________. Legislative History for Crater Lake National Park, comp. by Cathleen Frank. 3 vols. April, 1986.
________. ________. National Park Service Rustic Architecture: 1916-1942, by William C. Tweed, Laura E. Soulliere, and Henry G. Law. February, 1977.
________. ________. National Register of Historic Places Inventory–Nomination Form, “Historic Resources of Crater Lake National Park,” (Draft), 1984-85.
________. ________. Resources Basic Inventory for Crater Lake National Park. July, 1974.
________. ________. Statement for Management: Crater Lake National Park. March, 1983.
________. ________. Statement for Management: Crater Lake National Park. August, 1986.
________. ________. The National Survey of Historic Sites and Buildings, Theme XX, Conservation of Natural Resources. 1963.
________. ________. Visitor Fees In the National Park System: A Legislative and Administrative History, by Barry Mackintosh, 1983.
_______. _______. Wilderness Proposal, Crater Lake National Park. October, 1970.
_______. _______. Wilderness Recommendation: Crater Lake National Park, Oregon. February, 1974.
________. ________. Wilderness Study, Crater Lake National Park, Oregon. September, 1970.
The most useful technical reports for this study were those concerning park management, operations, and planning.