60 EEPORT UNITED STATES GEOLOGICAL SURVEY. 



The time of gauging of these streams was toward the close of the sea- 

 sou wheu irrigatiou of crops is necessary. Earlier in the season, when 

 more water is needed for that purpose, the streams always carry a 

 greater quantity. 



If future interests should ever make it desirable to have artesian 

 wells in that region, they may, no doubt, be successfully made in sev- 

 eral places ; as, for example, in Coyote Basin, the valley between Mid- 

 land Ridge and the Eaven Park Uplift, in the valley of Red Bluff Wash, 

 &c. The conditions of the strata of the district upon which this opinion 

 is based are shown in the sections at the bottom of the geological map 

 accompanying this report. 



Grazing lands. — Although irrigation is necessary for all cultivated 

 crops in that region of which this district forms a part, very nutritious 

 grasses grow naturally both in the valleys and upon the uplands, those 

 of the latter being more nutritious than those of the former. The grass 

 upon the uplands is thinly scattered, but the extent of surface upon 

 which it grows is so great that it will furnish an abundance of food for all 

 the grazing animals that may be required by the limited population 

 which the irrigable lands of the valleys are capable of supporting. 



Fuel and huilding material. — Although there are no forests, properly 

 speaking, in this district, there is, upon the hills and mountains, a scat- 

 tered and generally stunted growth of cedar, pinon, and aspen trees, 

 which is quite sufiScient in amount to meet all requirements for fuel, 

 fences, and such small, rude buildings as may be required for farm pur- 

 poses. Easily dressed sandstone is almost everywhere abundant, from 

 which substantial buildings may be constructed. 



Besides the wood fuel, which will doubtless be quite sufficient for all 

 the ordinary wants of the greatest population which the district will ever 

 support, there are several localities where coal may be obtained in com- 

 parative abundance. Among the best exposures of coal that were ob- 

 served during the progress of the survey are those of two principal beds, 

 one of which is found in and near Canon Park, and another in the Dan- 

 forth Hills, northwestward from White River Indian agency. Both of 

 these beds occur among the strata of the Laramie Group, one being 

 near the base and the other near the top of the series. Comparatively 

 little search will doubtless fully reveal these and other beds of coal 

 in those places, from which supplies may be obtained with comparatively 

 little labor. The bed that occurs in the Danforth Hills is also seen ex- 

 posed in the valley sides of Yam pa River below Caiion Park. This bed 

 doubtless represents one ofthose at the well-known mines at Rock Springs 

 Station, on the Union Pacific Railroad, Wyoming. The bed that occurs 

 in the upper strata of the Laramie Group, and which is exposed in Canon 

 Park, doubtless represents one of those beds which were formerly worked 

 at Point of Rocks and Black Buttes stations, on the railroad just named. 



A bed of coal in the lower strata of the Colorado Group, near the south 

 side of Lily's Park, has already been mentioned on a previous page, but it 

 seems somewhat doubtful whether it will prove to be a good one. Although 

 the Laramie Group contains so much coal in the eastern part of the district, 

 there seems to be comparatively little among the strata of that group in 

 the western part. In the region of which this district forms a part, the 

 Fox Hills Group is known to contain some coal, but within the limits of 

 this district no good bed of coal was discovered among the strata of 

 that group. 



