1. A geospatial modeling system comprising: a geospatial model data storage device containing geospatial model data including a plurality of groups of tree crown vegetation points; a display; and a processor cooperating with said geospatial model data storage device and said display for displaying a simulated tree trunk beneath a group of tree crown vegetation points, and displaying at least one level of simulated tree branches for the simulated tree trunk, each tree branch being positioned based upon determining a branch distal reference point beneath a cluster of tree crown vegetation points from among the group of tree crown vegetation points.