Originally published as: History of geothermal exploration at Crater Lake National Park ; ([Crater Lake, Or.: United States, Department of Interior, National Park Service, Crater Lake National Park, 1987]); 3 p.; 28 cm.
Date Original
[1987]
Date Digitized
2009-04-10
Date Available
2009-05-04
Original Publisher
United States, Department of Interior, National Park Service, Crater Lake National Park
