Elevation data for the Crater Lake National Park was obtained from the Crater Lake Data Clearinghouse in the form of a 10m-resolution DEM derived from hypsographic data and photogrammetry of four topographic quadrangle maps. The 3D model below was created using this data in 3DEM software, right click to zoom in..

http://craterlake.wr.usgs.gov/data.html

Road, vegetation type, park boundary, lake shape and trail attribute data were provided by the National Park Services website. All layers were intially in Arc INFO format and requied conversion. Roads and vegetaion types also required reprojection in Idrisi.

http://www.nps.gov/gis

The vegetation type layer was derived from sattelite imagery using all 6 bands of the Landsat Thematic Mapper, and supported by 550 field sites to ground truth for a total of 16 different vegatation categories.

The image above shows the combination of the initial raster DEM as a background with road, trail, stream and lake vector layers in IDRISI. Vegatation type is not included.