92 A GEOLOGICAL SURVEY OF LANDS 



On the bottoms in the east part of Snow Tank pasture the 

 conditions for a flow is even more favorable, owing to the lesser 

 elevation oftheland, which is in some places below the 900 feet level, 

 and also on account of the almost certain rise of the head in this 

 direction, the head of the Brackett springs being 1075 feet. But 

 the depth would probably be more than 1925 feet. It cannot be 

 estimated with quite as great certainty as for the country to the 

 west, owing to an absence of sufficient opportunity of noting the 

 dips in this eastern region, outcrops being few. But the addi- 

 tional depth of the drilling necessary to reach the water would 

 not be likely to exceed 400 feet. To the east of the Chacon the 

 depth would be still greater. 



It remains to be added that there are fair chances for securing 

 flows of this water in the lower bottoms of Cow creek and Pinto 

 creek on the Company's lands, if this should be desirable. On 

 Pinto creek the depth to the water would be about 1200 feet and 

 on Cow creek it would be about 1500 feet. 



Water from the Tertiary Rocks. 



^^he artesian water which flows in the basin of Camanche, 

 Live Oak, and Turkey creek and in the valley of the Nueces river, 

 comes from the sands in the tertiary system. The intake area of 

 these water-bearing sands lies between Carizzo Springs and the 

 Anacacho mountains. In this region the water-bearing strata 

 come up to the surface and form a sandy rolling belt of land, as 

 in the Chaparrosa pasture, in the west part of Palo Blanco past- 

 ure and in the Turkey creek pasture. As in other Artesian basins 

 it has been noted here also that the deepest lying sands have the 

 highest head af flow. This is because their intake area lies farther 

 north and higher up, than that of the upper sands. 



In the absence of definite data on the elevation of the lands in 

 this basin, the extent of the available flow can be inferred only 

 from the distribution of the wells now in existence. For this pur- 

 pose a list was secured which gives the name of the owners of wells 

 with some data on the depth of the wells, their flow, etc. The list 

 does not give the location of all the wells, and it is defective in 

 other respects, but it is given for what it is worth, as the best that 

 could be secured at the time. 



