Nocona 2001 Nocona2001.mdb geodatabase boundary noco83_poly: polygon lake boundary made from 1995 DOQs, DRGs, and collected data cont_2: 2 ft contours noc_pt: 2001 survey data points Noco83_poly.shp: polygon lake boundary made from 1995 DOQs, DRGs, and collected data Noco_cont_2.shp: 2 ft contours Noco_pt.shp: 2001 survey data points dtxyz.txt: txt file of survey data points (date,time,x-coord,y-coord,z(elevation)) noco_vol.txt: list of elevation area and volumes calculated from tin area.table.txt: elevation area table formatted volume.table.txt: elevation volume table formatted