----------------------------------------- ETOPO5 data extracted from NGDC web ----------------------------------------- Area: 40 North latitude | 79 West longitude - - 70 West longitude | 31 North latitude Data format: Datavalues in whole Meters (- = below sea level) Delimiter: tab Grid size: 109 x 109 matrix of 5-minute grid values beginning at NorthWest corner progressing Eastward for 109 values, then stepping 5 minutes South for the next row, ending at SouthEast corner. Note: Negative latitudes are South. Negative longitudes are West.