This research utilized the cost-effective methods for regional landslide characterization to serve as "roadmap" for more detailed landslide subsurface characterization. ASTER DEM's data with 30 m resolution and topographic maps with 40 m resolution were used for this regional scale landslide study to explore the foundation for the concepts embedded in the "expert-driven" practice of estimating the likely subsurface structure of bedrock landslides based on their surface expression. The projected subsurface structure of mapped landslides in the Bashilo River watershed, Ethiopia, reflects the active role of past ongoing mass-wasting processes in shaping the Bashilo River watershed's current setting. This regional study could help planners and engineers as guide map in contingency planning of geohazards in Tekeze and Blue Nile River watersheds.