Trans, ING Ve Ag. S6e, 18 Ock.:30. 
At one point the gray bed lies between beds of sandstone; the red 
bed does not appear, and the underlying sandstone strata are almost 
white, laminated, and very hard. The bed is more than two miles 
distant from the gypsum hills; the gravel drift is noticeable and even 
_ abundant. Observing the nuggets of copper ore and the drift pebbles 
lying about in places on the red bed, the idea forced itself upon me that 
there might be a remote connection between the two. However, the 
nuggets of ore are evidently concretions, and no pebbles occur in the 
gray bed. The gypsum range extends several miles across, with a 
western declivity similar to that on the eastern side. A plain, a little 
over one hundred feet below, reaches beyond to the foot of the great 
Llano Estacado. On these hills and on this western plain the gravel 
drift is wanting. 
The copper bed was traced five miles further to the north: also in 
Knox county, not far from the Wichita river, and forty miles or more 
north of the southern portion of Haskell county: its occurrence 
was also reported north of the Wichita river. The copper band 
here lies between the sandstone and gray bed, with the red beds 
beneath. Eastward, between the Brazos and Wichita rivers, the gravel 
drift is abundant, with many stones of greater diameter. At the “ Nar- 
rows,” between the Wichita and Brazos rivers, the width is only suffi- 
cient to admit the passage of a single wagon. Continued caving in of 
the bluffs of the two rivers has widened an immense eroded area, 
rendering a large surface valueless, and while the channels of the rivers 
are several miles apart, their junction is only a question of time. In 
the copper region of the little Wichita river, near the centre of Archer 
county, the ore occurs under the same general conditions, with a differ- 
ent course, N. E. and S. W., and copper nuggets, coal and cuprified 
wood are found. 
Embedded in the overlying sands‘one, in some instances several feet 
above the gray bed, the sandstone frequently attains a thickness of 
more than fifteen feet. The cuprified wood is altogether different from 
that of Haskell county, and resembles the wood of the mesquite tree, 
which I found scattered about. The gravel drift here is identical in 
character with that of the region further west, and pebbles occur in the 
gray copper-bearing bed beneath the sandstone. The extension of the 
gravel drift of Haskell county, beyond the Brazos river system, its 
absence west of the gypsum hills, the larger size of the pebbles in 
Knox county, bordering the Wichita river, and the occurrence of the 
drift only in the vicinity of the copper-bearing lines mentioned, and in 
Archer county, suggested to me a possible relationship of some kind 
between the two, perhaps their origination in the same region. Be- 
tween the Wichita and Pease Rivers I crossed several copper-bearing 
