Grand Canyon Geology Raft Trip

Alison Jones is running another motorized Grand Canyon geology raft trip on July 9–15. The outfitter is Hatch River Expeditions. We’ll launch at Lee’s Ferry and helicopter out from Whitmore...

Celebrating Lee Allison’s Life

In honor of the late Lee Allison, Arizona State Geologist, Lee’s friends and colleagues have organized a special field trip and evening event to celebrate his life. The event is...