All files in this directory are projected with NAD27 UTM14N meters
ERMAPPER compression plugin for a number of programs including ESRI software can be obtained from http://www.ermapper.com/

bexar_hem_drg.ecw 		digital topographic map with ERMAPPER compression 
bexar_hem_drg.ecw.gi 		geosoft header file
bexar_hem_drg.ers   		ermapper header file
bexar_hem_drg_nocolor.ecw 	digital topographic map with ERMAPPER compression no green colors
bexar_hem_drg_nocolor.ers  	ermapper header file
flight_path.dxf       		flight path for survery AUTOCAD format with above projection
streams_nad27_edit.dxf		simplified drainages AUTOCAD format with above projection
survey_area_boundary.dxf	outline of airborne survey AUTOCAD format with above projection