Houston County Lake 1999 HoustonCnty1999.mdb geodatabase Boundary hcnty83_lk: polygon lake boundary digitized in AutoCad from USGS 7.5 minute topos hcnty83_is: polygon island boundaries isolated from above file cont_2; 2 ft contours hcnty83_pts: 1999 survey data points (83 means projected in NAD83 State Plane) HCnty83_lk_poly.shp: polygon shape file of lake boundary (digitized in AutoCad from USGS 7.5 minute topos) HCnty83_is_poly.shp: polygon shape file of island boundaries HCnty83_pts.shp: 1999 survey data points HCnty_cont_2.shp: 2 ft contours alldata.txt: xyz txt file of survey data points (x-coord,y-coord,z(elevation)) hcnty_vol.txt: list of elevations areas and volumes calculated from tin model (in -elev,square ft,cubic ft) hcnty_area_cap.txt: list of elevations areas and volumes converted to elev, acres, acre-feet area.table.txt: elevation area table formattted (in acres) volume.table.txt: elevation volume table formatted (in acre-feet)