Hubbard Brook Experimental Forest 30m DEM: Raster GeoTIFF

The 7.5-minute digital elevation model (DEM) data are digital representations of
cartographic information in a raster form. The DEMs consist of an array of
elevations for ground positions at regularly spaced intervals. The data are produced
in 7.5- by 7.5-minute blocks from either digitized cartographic map contour overlays
of a scanned National Aerial Photography Program (NAPP) photographs. The DEM data
are stored as profiles with a 10- or 30-meter square grid spacing along and between
each profile. The original USGS DEM data (Mt. Kineo and Woodstock quadrangles) were
merged and projected into UTM Zone 19. The resultant grid was clipped to a box
surrounding the USDA Forest Service, Hubbard Brook Experimental Forest. Data distributed as GeoTIFF format in
Coordinate system EPSG:26919 - NAD83 / UTM zone 19N.