Load the DEM .

Click the Load Button in the DEM Panel, navigate to the folder you un-zipped the BIL file to and select the BIL file. ReDem will read the *.hdr, and *.blw files associated with the BIL to gather information about the location, resolution, and size of the elevation data. If you do move the *.bil to a different folder make sure you move the corresponding *.hdr and *.blw files as well.




An information window will display after ReDem has read the *.blw and *.hdr files associated with the DEM. Those files provide ReDem with the location, size, and resolution of the DEM data.





Click the OK Button in the Information Window to close it and continue.

The bounding box of the DEM data is shown in the DEM panel along with the DEM File name.

ReDem will warn you if the DEM bounding box does not cover the requested tile Range. ReDem will not create a terrain tile unless ALL points of the tile fall within the DEM area. This is useful if you are using DEMs with varying resolution or are creating the route from many BIL files.