Lakes and Reservoirs
	Texas Water Development Board Reservoir Conditions http://www.twdb.state.tx.us/publications/reports/waterconditions/conservationstorage/conservation_storage.htm
	Global Lake Conservation Database http://www.wcmc.org.uk/~dynamic/lcdb
	Reservoir Elevations and Stream Gage Height and Discharge http://tx.usgs.gov/
	Texas Hydrographic Survey Data http://www.twdb.state.tx.us/assistance/lakesurveys/volumetricindex.htm