Among the gently rolling 'dobie hills in North Delta, Devil's Thumb stands tall -- apparently impervious to the forces of erosion that have worn down the surrounding soft clay hills.
Late this summer, Dr. Dave Noe led an excursion to Devil's Thumb, following a trail that at first climbed gently through an arroyo, then grew steeper as it ascended Petrie Mesa to the landmark that gave Delta's golf course its name.
The geologic features of Delta County that contribute to its bounty of agriculture and natural resources, and to the scenic beauty and recreational pleasure it affords have been the professional province of Dave Noe of Paonia.
He is a geologist "recently retired" from the Colorado Geological Survey.
Western Colorado has been surveyed and mapped many times since the Hayden Geological Survey passed through the area in 1874 ahead of U.S. expansion into the west. But nothing has been accomplished quite like the survey and mapping project Paonia geologist Dr. Dave Noe embarked on back in 2006.
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