UNDERGROUND WATERS. 
69 
Notes on borings from University well at Laramie. 
Gravel, sand, and red loam 
Red sandy clay with a few sandstone fragments 
Feet. 
40 
80 
120 
160 
240 
Red sand, with some clay and large fragment s i if gypsum 280 
Limestone (Forelle) 
Limestone and sandstone; firsl water 
Pink sandstone 
Light-pink sandstone ; some lime 
Coarser, darker colored sandstone and lime 
Pink limestone 
Dark-red sandstone 
Red sandstone and limestone 
Red sandstone; some lime. 
Pinkish sandstone; considerable lime. 
White sandy limestone 
White sandstone; some lime. 
310 
458 
165 
480 
505 
546 
570 
595 
630 
657 
698 
733 
825 
870 
900 
940 
970 
995 
Light-cream sandstone; some lime 1, 015 
Materials coarse from 80 to 150 feet; 150 to 300 feet, finer grained and brownish red; 
300 to 560 feet, much lighter colored and finer, containing some carbonate of lime; 
560 to 590 feet, mottled, coarser, darker, with a little carbonate of lime; 590 to 615 feet, 
coarse fragments of red sandstone and gypsum; 615 to 650 feet, coarse-grained brown 
sandstone, containing no gypsum; 650 to 680 feet, coarse sand, with some gypsum; 
680 to 780 feet, medium coarse-grained brown sandstone; 780 to 880 feet, very much 
lighter colored and very fine; 880 to 960 feet, almost white, very fine sand and car- 
bonate of lime; 960 to 1,015 feet, a little coarser than the last and having about the 
same proportion of carbonate of lime, but of cream color. 
There are 40 feet of 7 f -inch casing to shut off gravel at the top, and 
600 feet of 5 f -inch casing. The first flow was struck at a depth of 
458 feet, and comes up between the two casings. The second flow 
was struck at 820 feet, apparently in the highest sandstone of the Cas- 
per formation. The drilling was continued to a depth of 1,015 feet, but 
no additional water was found below 990 feet. The amount of water 
flowing at the beginning was measured by B. C. Bufl'um, and found 
to be 50,000 gallons in twenty-four hours. An analysis is given on 
page 76. The contract price for drilling was $2,000, and the uni- 
versity furnished the casing, at a cost of $552.25, making the total 
cost $2,552.25. 
In a well sunk by the county in the SW. \ sec. 28, T. 16 N., R. 73 W. T 
just across the road from the western of the two small lakes in the 
northern part of Laramie, several flows were found, but the main flow 
