The Geologic Field Trip Guide: Oak Creek-Mormon Lake Graben, North-Central Arizona by Paul Lindberg

This geologic field trip guide circumnavigates a loop of ~120 miles from Flagstaff to Sedona along Highway 89A and returns to Flagstaff along the Lake Mary Road.

The 12 geologic stops focus on recent faulting and the encroachment of Basin and Range extensional structures on the Colorado Plateau. Each stop is detailed in the text, which is amply illustrated with photographs and colored geologic sketches.

The guide is made available to the public courtesy of Paul Lindberg and the Arizona Geological Society.

Cross section of the Oak Creek – Mormon Lake Graben (PL)

Schnebly Hill sandstone deformed along Laramide-age, reverse Oak Creek fault

Basalt lava flow capping volcanic tephra at junction of Stoneman Lake and Lake Mary Road

Geologist Paul Lindberg at exposure of the Lake Mary Fault on Marshall Road adjacent to Upper Lake Mary

The AEG 57th Annual Meeting Field Trip to the Grand Canyon Guidebook.

The authors and field trip leaders:
Phil Pearthree (Arizona Geological Survey)
Wayne Ranney (Geologist, Author, and Guide)
Guidebook Edited By: Chase White
Field Trip Sponsored By: Duane Kreuger

Grand Canyon National Park – Image credit: National Park Service