The U.S. Department of Agriculture - Forest Service (USDA-FS) has been evaluating hazards and classifications at the dams of four small reservoirs in the Mark Twain National Forest in Missouri. These reservoirs are Crane Lake near Annapolis, Fourche Lake near Briar, McCormack Lake near Greer, and Sterling Hollow Lake near Willow Springs. Conventional topographic surveys were used to provide data needed for as-built information of the earthen dam structure, spillways, and groins at each of the dams. High-resolution terrestrial light detection and ranging (T-LiDAR) data also were collected for the concrete spillway structure at Crane Lake Dam to provide baseline data for potential monitoring and change detection.