187), reference is made to the proposed appointment of a Committee to collect and register photographs of localities ... arrange for a photographic survey for geological purposes in their district.

Arroyos are deep, oversized channels that have vertical or steeply cut walls ... Study authors Jonathan Friedman of the U.S. Geological Survey and colleagues note that although the channels ...

Residents in Northern Colorado may spot a low flying helicopter in the area over the next three months due to an ongoing geological survey ... or plant life. No photography or video data will ...