The U.S. Geological Survey has tasked Woolpert with collecting 28,043 square miles of topographic Quality Level 1 lidar data and providing ground control survey across western Arkansas in support of ...
Just north of the famous Gorge Amphitheatre are two enormous lake-filled canyons that appear to feed into the Columbia River. But the canyons of Potholes Coulee weren’t carved by rivers, and the lakes ...