352 Parks of Colorado. 
trees, has from this feature the name “Los Alamosos.” It is 
sixty miles in length and twenty wide. On the Opposite (west- 
ern) side, from the flank of the Sierra Mimbres, similar streams, 
known as the Sawatch, the Carnero, and the Gareta, descend 
from the west into the lake. : 
The confluent streams thus converging into the San Luis lake 
are nineteen in number. The area thus occupied by this isola- 
of its whole surface, is classified under the general name 0 
‘‘ Rincon.” 
__ Advancing onward to the south, along the west edge of the 
plains, ten miles from the Gareta, the Rio del Norte issues 
from its mountain gorge. Its source is in the perpetual snows 
of the peaks of San Juan, the local name given to this stupen- 
dous culmination of the Sierra Mimbres, The Del Norte flows 
from its extreme source due east one hundred and fifty miles, 
and having reached the longitudinal middle of the park turns 
abruptly south, and bisecting the park for perhaps one hundred 
and fifty miles, passed beyond its rim in its course to the Gulf 
of Mexico. - All the streams descending from the enveloping 
Sierras (other than the Alamosos) converge into it their tribu- 
plain along the base of the Cordillera, the prodigious conical 
mass of the Sierra Blanca protrudes like a vast hemisphere 1nto 
the plain and blocks the vision to the direct south. The road 
describes the are of a semi-circle around its base for thirty miles, 
and reaches Fort Garland. 
In the immediate vicinity of Fort Garland, the three agp 
streams, the Yuta, Sangre de Christo, and the Trenchera, de 
Colorado is reached; eighteen miles onward is the Arroyo 
ndo; (between these is the San Cristova;) from the Arroy? 
