Crater Lake National Park Feature

Crater Lake National Park: A Global Treasure, by former park rangers Ann and Myron Sutton, celebrates the park's first 100 years with stunning photography, charts, and drawings.

Ron Warfield's A Guide to Crater Lake National Park and The Mountain That Used to Be gives a useful and lushly illustrated overview of Crater Lake's history and physical features.

The National Park Service uses Stephen Harris's Fire Mountains of the West in its ranger training; the detailed handbook covers Cascade Range geology.

Wildflowers of the Olympics and Cascades, by Charles Stewart, is an easy-to-use guide to the area's flora and fauna.