When my start and destination points are in the same topo quadrangle, I am able to calculate cost path. However, when they are in different quads, it shows an error. I have tried downloading a county mosaic but they do not come in DEM (only DRG) so the slopes are wonky. I don't know how else to create a "seamless" set of maps using USGS 24k topos and none of the ArcGIS online map data (terrain, DEM 30m, etc.) will download to my map.
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