Shaded relief maps based on lidar data and showing landslides in the area of Yankee Jim Canyon, Montana

Shaded relief maps based on lidar data and showing landslides in the area of Yankee Jim Canyon, Montana. Lidar imagery is given as a colored, shaded slope map, with higher elevations in brown and white, and lower elevations in green. Darker shading indicates steeper slopes. Top lidar image is looking east at Yankee Jim Canyon along highway 89 showing numerous large prehistoric landslides (shown by colored arrows). With lidar data, one can identify, in great detail, the type of gravity-driven landslide and its transport direction, extent, and relative age. In the foreground, Highway 89 crosses the toe of a landslide that once to blocked the Yellowstone River but has subsequently been incised by the river. Bottom lidar image is northward view upstream of Yankee Jim Canyon, where one can see several landslides with long run outs between their head scarps (where they initiated) and toes (where they reached their downslope ends) that almost reach Highway 89. (Lidar visualization by Yann Gavillot, MBMG, using 3-D scene in ArcGis Pro).