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Pacific Northwest Seismic Network's Mount Jefferson Website—The premier source for information about seismic activity around Mount Jefferson, Oregon.
Oregon Department of Geology and Mineral Industries (DOGAMI)—State of Oregon geology information. Access to maps, LIDAR data, and field trip guides are available for Mount Jefferson and other regions within the state of Oregon.
Discover Your Northwest—A good source of books, maps, and other information for wilderness areas within the state of Oregon. Search Mount Jefferson for region-specific resources.
Summit Post climbing and camping information for Mount Jefferson, Oregon—A resource for technical mountaineering information supported by a community of outdoor enthusiasts who share information and stories about backpacking, rock climbing, hiking, and camping.