9692

• UCREFRP Catalog Number: 9692
• Author: Tyus, H. and Haines
• Title: Biology of Young Colorado Squawfish
• USFW Year: n.d.
• USFW - Doc Type: 81-89
• Copyright Material: YES

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22 UEPOIlT 01' AN EXPEDI'rION DOWN THE, &c.

The shruhs are the arrow-wood, wild sage; hediondilla, or
creosote plant, allllgrcase weed, soca\led from the brilliancy
of its Hame while burning. Cacti arc not numerous; the most
remarkable is the 1)italwya, or Cere'lts giganteus.
Only two kinds of grass were found, at rare intervals, and
in small quantities; .~ tall, c?arse variety,. gro.wing in .large_
tufts, ami a smaller kll1 <1 , havlI1g a percepnble 1I1crustatlOn~f
salt upon the leaves. ; .'
The trap in some places along the river showed traces of
carbonate of copper, and beneath the trap was seen a coarse,
gray granite, lInd in one instance a stratum of clay slate. '
Near camp 51 a large rock occupies the middle of the chan-
nel, find ledges extend Ii-om it across to both banks. In many
other places the river is obstructed by shifting sand bars, ren--
dering its navigation difficult, if not impossible, except during
a high swge of the water. The water stains upon the rocks
marked a height of twelve feet above the actual level, but the
indications or overflow were partial, except near the mouth oC
the Gila, where a tngc surface appears to be subject to inun-
dation.
Very respectfully, your obedient sej-v'ant,"
. L. SITGREA VES;
Brevet Capt(fin TO]1ograll~cal- Ellginee7"S~
Colonel .1. J. A mmT, .
00"/1)S TOlwgn'1JhicalEngineers.

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DISTANCES, GEOGRAPHICAL POSITIONS
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METEOROLOGICAL OBSERVATIONS.

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