Map of Crater Lake National Park area, showing geology, stream, and spring-site...

1 map: col.; Relief shown by contours and spot height. Depths shown by contours and soundings; Shows Crater Lake and the Mount Mazama region; Base map: U.S. Geological Survey 1:62,500 special series Crater Lake National Park and vicinity, Oregon,...

2008-06-30
2009-06-16

Program development and design criteria for activity center/hotel facility at Rim...

2 v.: ill., maps, photos (some color); "Volume One: Program" and "Volume Two: Reference." Both volumes: "Prepared for the National Park Service, Denver Service Center." - Cover/Title pages; Volume Two includes "Wind tunnel study of snow conditions...

2009-09-30
2010-02-08

1987 Crater Lake National Park rim redevelopment public involvement survey: statistical...

ill., forms; Subagreement no. 2; Co-op agreement no. CA-9000-3-0004

2009-06-11
2009-08-31

Crater Lake National Park natural resource preservation and research: annual...

col. ill.; Cover title; Administration - - Inventories - - Monitoring - - Restoration - - Resource Protection - - Research

2024-04-27
2009-08-14
2009-12-21

Visitor behavior and management alternatives at Crater Lake National Park

ill.; Cover title: Social impacts of design alternatives, Crater Lake National Park; "Final report, contract #CX9000-7-0061 between Crater Lake National Park and Oregon State University."

2009-05-15
2009-06-08

Crater Lake National Park resource preservation and research: annual accomplishments...

col. ill.; Cover title; Administration - - Inventory - - Monitoring - - Restoration - - Anthropogenic Threats - - Research and publications

1999-04-27
2009-08-14
2009-12-21

Technical memorandum, vehicle and visitor use study Crater Lake National Park, Oregon

ill., maps; Report title; Counts were collected during 2001 and the beginning of 2002. Accident data is given for 1998 - 2000;

2024-04-27
2009-05-15
2009-09-01

Superintendent's residence historic structure report: Crater Lake National Park, Oregon

ill., maps, photos, plans; Report title; "June, 2003" - T.p.; Includes bibliographic references.

2024-04-27
2009-11-04
2010-03-01

Position statement and operational plan for winter and spring research on Crater Lake...

The position statement presents the need for winter data on Crater Lake water quality according to Public Law 97-250 and includes the operational decision tree and schedule for the safest possible research during the winter and spring months of...

1986-04-27
2009-07-16
2010-01-04

Crater Lake National Park research opportunities

col. ill.; Cover title; Published in cooperation with the Crater Lake Natural History Association, USGS Forest and Rangeland Ecosystem Science Center, and Crater Lake National Park; National Parks provide stable and protected sites for sustained...

1999-04-27
2009-05-18
2009-06-08

Crater Lake National Park oral history series, John Eliot Allen

ill.; Photocopy; "Interviewed by Stephen R. Mark on September 24, 1991; Transcribed by Darci Gomolski, with assistance from Anton Briefer, 1994." - T.p.

1991-04-27
2010-03-22
2010-04-12

Cultural landscape recommendations: park headquarters at Munson Valley, Crater Lake...

ill., maps; Cover title; "Summer 1991."; Includes bibliographical references (p. 45)

1991-04-27
2009-09-16
2009-12-14

Crater Lake National Park visitor study, summer 2001

chiefly ill., maps; "The visitor study was conducted August 3-9, 2001 by the National Park Service (NPS) Visitor Services Project (VSP), part of the Cooperative Park Studies Unit at the University of Idaho"--P. 1.; "April 2002."; "NPS...

2009-04-29
2009-05-18

Pumice Desert RNA

ill.

1993-04-27
2010-04-01
2010-04-05

Visibility monitoring and data analysis report for Crater Lake National Park Dutton...

ill. (some color),; Report cover' "November 1991." - T.p.; Condition codes used are those developed as part of the National Park Service Visibility Monitoring and Data Analysis Project. - p. 3; Includes bibliographic referencees (p. 47, A8-A9);

1991-04-27
2009-07-10
2010-01-11

Peregrine falcon management action plan, 1988

Report title; "Robert E. Benton, Superintendent." - T.p.;

1988-04-27
2010-04-07
2010-04-26

Natural area information: Pumice Desert

maps; Includes bibliographic references;

1993-04-27
2010-04-01
2010-04-05

Initial effects of prescribed fire in a climax Pinus contorta forest: Crater Lake...

ill., 1 map; "CPSU/UW81-4."

1981-04-27
2010-06-05
2010-07-28

Peregrine falcon management action plan, 1987

Report title; "Robert E. Benton, Superintendent." - T.p.

1987-04-27
2010-04-07
2010-04-26

Crater Lake National Park bull trout restoration program: status review and study plan

ill.; Report title; "Prepared for: U.S. Fish and Wildlife Service, Klamath Falls, Oregon." - T.p.; Includes bibliographic references

2010-03-22
2010-04-05

Taxon name: Collomia Mazama Coville

Taxonomy report title; "May 1980."; Author affiliated wiht "Oregon Natural Heritage Program," within the text of the work under "IV. Authorship." p.10; Includes bibliographical references (p. 9-10)

1980-04-27
2009-07-16
2009-12-21

Report on the vegetation type survey of Crater Lake National Park

ill.; "Field work was completed on August 15, 1936, and the office work connected with the survey done at the Berkeley office of the Branch of Forestry during the winter months." - P. 1.

2009-04-29
2009-05-18

Lodgepole pine at Crater Lake: history and management of the forest structure

ill. ; Caption title; "Final report, contract CX-9000-6-0064, Pacific Northwest Region, National Park Service."

2009-03-17
2009-04-27

The hearings on Crater Lake water contamination held at Crater Lake National Park,...

ill.; Dates on each section and the addendum are "August 11, 1975."; "Ernest Borgman, General Superintendent Crater Lake National Park" and "LeRoy Fisk, Chairman of the Committee and affiliated with Oregon Institute of Technology" - Cover.; Cover...

1975-04-27
2008-09-08
2009-01-26

Natural area information: Desert Creek

ill., maps,; Includes bibliographic references;

1993-04-27
2010-03-23
2010-04-12