. Annual report of the United States Geological Survey to the Secretary of the Interior . incised valleys of the Leon Riverand its principal tributaries from the west: Cowhouse Creek, SouthNoland River, Lampasas River, and Salado Creek. These creeks,with the exception of the Salado, have all cut deep valleys below thehigh flat-topped divides of the Lumpasas Cut Plain. The summits ofthe latter attain an altitude of over feet in the extreme westernportion of the county. The valley of the Leon River extends northand south through the county until it reaches the Black Prairie eastof Belton,
. Annual report of the United States Geological Survey to the Secretary of the Interior . incised valleys of the Leon Riverand its principal tributaries from the west: Cowhouse Creek, SouthNoland River, Lampasas River, and Salado Creek. These creeks,with the exception of the Salado, have all cut deep valleys below thehigh flat-topped divides of the Lumpasas Cut Plain. The summits ofthe latter attain an altitude of over feet in the extreme westernportion of the county. The valley of the Leon River extends northand south through the county until it reaches the Black Prairie eastof Belton, when it turns southeast. This valley constitutes a wide. Fig. 65.—Artesian map of Bell County, Texas. 1, areas in which flowing wells can be obtainedfrom the Fredericksburg res2rvoir; 2, areas where flowing wells are likely to be obtained; #.wells from the Trinity reservoir; A, flowing wells from the Fredericksburg reservoir; figuresindicate depths of wells in feet. area below the general level of the country. All of the regionsincluded in the valleys of the streams are so situated that flowingwells are obtainable in them at points below 750 and 800 feet in altitude. The county is divisible into two artesian districts east and west ofthe Balcones fault zone, which extends in a northeast-southwest direc-tion from the vicinity of Troy, between Belton and Temple, and westof Salado. Bell County is underlain hy the three artesian reservoirs of theFredericksburg, Glen Rose, and Trinity systems, the last of whichalone underlies the whole county and is the most reliable source ofartesian water. There are no data for ascertaining the dip of these
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