A raster-based ArcGIS geoprocessing tool that calculates the least-cost path from a source to a destination over a cost surface.
http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#/Cost_Path/009z00000019000000/
A raster-based ArcGIS geoprocessing tool that calculates the least-cost path from a source to a destination over a cost surface.
http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#/Cost_Path/009z00000019000000/