Roads without trails Streams Mameyes Watershed Boundary Intersect Buffer 50 meters Buffer 100 meters Intersect represents all of the areas along stream networks where roads intersect or exist within 100 meters of their boundary. Road Proximity to Streams
Digital Elevation Model Slope Aspect Slope Reclassify 0 – 12% 12 – 21% >21% Aspect Reclassify – 292.5° 0 – 22.5/112.5 – 2.2.5/ ° 22.5 – 112.5° Slope: Low (1) Moderate (2) High (3) Aspect: Low (1) Moderate (2) High (3) Derive Slope and Aspect maps From DEM. Slope and Aspect Maps
Combining Slope and Aspect to Identify Areas of Susceptibility to Landslides Streams Buffer 300 meters Slope: Low (1) Moderate (2) High (3) Aspect: Low (1) Moderate (2) High (3) Combine Aspect = 3 and Slope = 3 High Susceptibility Slope and Aspect Stream Buffer High Susceptibility Slope and Aspect Overlay High Susceptibility Slope and Aspect within 300 meters of a Stream Stream Buffer