miles up where a large trail comes down a gulch from the West. 
The hoys made a station. 
August 25th.- 
17 miles in a straight line to Lone Cone - Trail uncertain - 
indications o* a good days work. Since the base of the Cone 
must he accomplished. First 10 miles up the Dolores, canon 
narrow and deep; a small terraced area at the forks. At the 
forks one stream came in from the northeast, the other from the 
Southwest, nearly equal in water, trails each way. Red beds 
appear first just before the mouth of Bear Creek, cliffs 900 
feet, and between that and the forks do not rise in any place 
more than 500 feet above the river. The massive white sandstone 
which appears all along just above the red belongs to the 
jurassie.(?) It is a remarkable fact that the purple laminated 
beds, pecu.liar to the cliffs of San Juan, do not occur here. 
Also that the Sanstones of the jurassie make up a greater part 
of the section, while below marls predominated. The great 
amount of vegetation obscures the geology greatly. Above 
the forks the beds rise more rapidly - Say 8 to 10° - and 
the walls of the canons are above 1500 feet. The West fork 
which seems to carry nearly half of the water rises among the 
group of trachytic ridges, often observed just Southeast of 
Lone Cone. (See map in sketch book). A small stream comes 
down through the mesa from the West and joins the West fork 
