Prof. Tom Minckley got the SCREE ball floating two years ago.

Guy in hat rowing raft.

Detailed Description

Starting two years ago, Professor Tom Minckley, from the University of Wyoming geology department, conceived and organized the Sesquicentennial Colorado River Exploring Expedition (SCREE), also known as the Powell 150 expedition. The USGS joined as a partner last year.


Image Dimensions: 3264 x 1832

Date Taken:

Location Taken: US