Exploration of the Red River of Louisiana, in the year 1852 / by Randolph B. Marcy ; assisted by George B. McClellan. Page: 25 of 368
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On the morning of the 16th the water had fallen so much that, after
digging down the banks, the wagons were taken over without difficulty.
We found an excellent ford upon a rapid, where the water was shallow,
and the bed hard gravel.
Passing through the timbered land in the bottom, we struck out
across the valley, and ascended the ridge dividing Red river from Cache
creek; here we found a good road over smooth, high prairie, and after
travelling 14 789 miles, encamped upon a small affluent of the west fork
of Cache creek, where we found good water and wood. In the course
of the march to day, we met with numerous detached pieces of copper
ore, mixed with volcanic scoria.* This scoria is found in large masses
in the ravines we have passed, and extends back several miles from the
creek. The other rocks have been principally sandstone. In the course
of the day's march we observed several Indian horse-tracks crossing our
road, which were made just previous to the last rain. The direction
they had been going was towards the Witchita mountains, and are the
first Indian signs we have seen.
* These ores consisted of a calcareous amygdaloid, through which is interspersed
black oxide of copper and stains of malachite. According to Professor Shephard's
analysis, it only yields five per cent of copper.
Upon the river, a few miles south of our route, we found specimens of a very
rich ore, which Professor Shephard, after a careful analysis, pronounces to be a
new species, which he has called Marcylite; it was coated with a thin layer of
the rare and beautiful Atacamite, (muriate of copper,) and consists ofCopper
. ..... ....................................
Oxygen and chloride..................................--........-. 36.20
Water ................................ . . . 9. 50
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Marcy, Randolph Barnes. Exploration of the Red River of Louisiana, in the year 1852 / by Randolph B. Marcy ; assisted by George B. McClellan., book, 1854; Washington, DC. (texashistory.unt.edu/ark:/67531/metapth6105/m1/25/: accessed July 23, 2017), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .