400 (1 EULOGY OF TUE DEHYEB BASIN. 



OTHER STONES. 



The other stones of the Denver Basin and the adjoining districts are of 

 little importance at present, although in time they may be developed. This 

 is particularly possible in the cases of the Dakota quartzite and the heavy 

 band of pink sandstone locally present near the top of the upper division of 

 the Trias. Both have already been used to a slight extent, the former for 

 paving and foundation, the latter for building purposes. For superstructures 

 the Dakota will probably never become a favorite, owing to the abundance 

 of the softer and really handsomer stones already described. 



Granite occurs in abundance in the mountains west of the Denver 

 held, but no examination was attempted. Quarries have been opened, 

 however, and the stone lias been used for building purposes in Denver 

 and other Western cities. 



PRODUCT. 



The value of the sandstone product from the localities and geologic 

 horizons referred to in the foregoing account amounted in 1889 to 

 $1,142,457, distributed as follows: Boulder County, $405,773; El Paso, 

 $377,800; Larimer, $317,388, and Jefferson, 841,496. The total value 

 of sandstone quarried throughout the State was 81,224,098. Of this, an 

 amount valued at *703,477 was devoted to general building purposes, 

 while for street work the product used was valued at 8509,955, the remain- 

 der being devoted to bridge, dam, and railroad work. 1 The consumption 

 in Denver has been very large, but both building stones and the material 

 for street work are marketed in many of the more eastern cities. Since 

 1889 and 1890, owing to the general business depression, the product has 

 steadily diminished, but the figures given show the possibilities of the 

 Denver Held and the adjoining regions. 



The total output of granite for the State in 1889 was valued at 

 $314,673, of which Douglas County is credited with 8200,049; Clear 

 Creek with $75,000; Gunnison County, $25,000, and the balance distrib- 

 uted among Chaffee, Larimer, and Boulder counties. 2 



1 From Mineral Resources of the United States, U. S. Geol. Survey, 1889-90, p. 384. 

 - Idem, p. 383. 



