38 books • 2 series
Ockham's Razor
The Ship in the Hill
100 Hikes: Central Oregon Cascades
100 Hikes: Northwest Oregon
100 Hikes: Eastern Oregon
Exploring Oregon's History
The Ship in the Woods
100 Hikes/Travel Guide: Northwest Oregon & Southwest Washington
The Ship in the Sand
100 Hikes/Travel Guide: Central Oregon Cascades
From the Gospel to the Creeds; Studies in the Early History of the Christian Church
Little Travelers
100 Hikes / Travel Guide
Trails of Crater Lake National Park & Oregon Caves National Monument
From the Gospel to the Creeds
The Oregon Variations
The Case of D.B. Cooper's Parachute
Oregon Favorites
Letters to His Holiness, Pope Pius X
Atlas of Oregon Wilderness
100 Hikes/Travel Guide: Oregon Coast & Coast Range
Oregon's Greatest Natural Disasters
100 Hikes in the Central Oregon Cascades (100 Hikes)
100 Hikes/Travel Guide (100 Hikes)