63 



From the same stand-point as the preceding*. Prominent in 



the view are the long slopes of quart/.ites, which break down 

 suddenly and leave the groat basin or amphitheater between 

 it and the granites of the main range. 



No. 18. Horseshoe Mountain, southeast from Fairplay about ten 

 miles, and in the same range with the preceding views. An 

 amphitheater in an Uplifted limestone strata, resembling 

 very nmeh the impression left by a horse's foot, upon a gi- 

 gantic scale, in the side of the mountain. The floor of* the 

 amphitheater is composed of granite, the qnart/.ites and 

 limestones resting upon it. There are some very rich silver- 

 mines about the mountain, lying in the stratified rocks high 

 up on the mountain elevation. 



No. 19. Looking north from neab HORSESHOE MOUNTAIN, to Bross 

 and Lincoln, and across Sacramento, Mosquito, and Buck- 

 skin Q niches. 



No. 20. Moraine on the SOUTH SIDE of La Plata Creek, at its junc- 

 tion with the Arkansas. (See No. 91 of 11 x 11 series, page 68.) 



No. 21. View of the Arkansas Liver, between the La Plata Creek 

 and Twin Lakes, where the stream is narrowed down to a 

 foaming cascade or fall, and flanked by great towering walls 

 of granite. 



No. 22. The Twin Lakes, a distant view, as seen from an elevation of 

 800 feet above them, on one of the spurs of Mount Elbert, 

 For description, see No. 89 of previous series. 



No. 23. The Liter Twin Lake. 



Nos. 21-20. The Twin LAXBS, a panoramic view, in three sections. Same 

 as No. 22. 



No. 27. Natural BRIDGE, on Twin Lake Creek, three miles above the 

 lake, formed by a great granite bowlder becoming stranded 

 and suspended oxer a deep, gorge-like crevice, under which 

 Hows the creek. It is the result of glacial action. 



No. 28. Falls on Twin Lakk Creek, in the same crevice, over which 

 hangs the Suspended bowlder mentioned in the preceding 

 number, this view being made from above, looking down 

 into it, the falls and the bridge being separated only a lew 

 yards. 



No. 2!t. A GRANITE BUTTBBSS, 500 foot in height, standing out midway 



in Lake Greek Valley, the upper lace of which has been 



rounded off and polished by glacial action. 



Nos. 30-31. Panobama from summit of La Plata Mountain. (See 

 Nos. 92-97 of 11 \" M scries, page 58.) 



No. 85. Amphitheater on westebh pace op Sawatob Range, as 



seen from Led Mountain Lass. It. lies at the head of a canon 

 emptying into Taylor Liver, a tributary of the Gunnison, 

 about the month of which is an extensive series of lateral and 

 terminal moraines. Elevation of puss, ll.su feet. 



No. .'50. Led Lock PAULS, upon a small tributary of Bast Liver, among 

 the Elk Mountains. The sandstones over which they (low 

 are carboniferous, broken Up into picturesque, castellated 

 forms, and of a dark, almost maroon red. 



No. .'37. Teooalli, from the a/.tic teocatti, or sacrificial mound, that were 

 always built in a pyramidal form, and which this mountain 

 closely resembles. Js situated upon a small tributary of Red 

 Kock Creek, flowing into East Liver. Its height is 12,S81) feet. 

 (See No. 103 of previous series.) 



No. 38. Gothic Mountain, East River, a bold picturesque mountain 



