HAYES AND 
KENNEDY. 
DETAILED SECTIONS. 51 
Still farther east, at Rock Branch, 5 miles south of Brookland, in 
Jasper County, the coarse gray sandstones are shown in a bluff on 
the bank of the creek, but their thickness is unknown. In this region 
the rock is badly broken up and covers the face of the hill for over 
200 feet, the sandstones being broken into large blocks, in many 
places over 3 feet in thickness. Along the line of the Gulf, Beau- 
mont and Kansas City Railwaj^in this vicinity the upper bed of sand- 
stone appears to vary from 2 to 4 feet in thickness and to be under- 
lain by heavy beds of yellow and pink clays. Several of the cuttings 
show that the sandstones have been eroded, leaving the clays to form 
the surface throughout the valleys. The region comprises a hilly 
country, showing deep valleys and knob-like hills. These hills are 
generally covered with a brownish-graj^ conglomerate containing 
great quantities of white quartz pebbles. 
In Newton County the sandstones are not much exposed. The 
rounded knob-like hills found in Jasper County extend across New- 
ton County and into the lower portion of Sabine County. A section 
on Little Sandy Creek shows the lignites of the underlying Yegua 
beds beneath the sandstones. The section is as follows : 
Section on Little Sandy Creek. 
Fayette: Feet. 
1. Gray sandstones 4 to 6 
2. White clays and sands 60 
Yegna: 
3. Lignite. 2 
On the Sabine River the sections seen at Snells Landing, Madden 
Perry, and Runyons Bluff show the Fayette beds in this region to be 
gray sandstones with thinly laminated pink and white clays, the 
sandstone beds ranging from 1 to 6 feet in thickness. 
Passing into Louisiana, the same sandstones, with their associated 
clays, appear in the SW. i sec. 2, T. 5 N., R. 13 W. Between Horn- 
beck and Christie the section shows the sandstones underlying the 
blue calcareous clays of the Frio beds. The sandstones also occur at 
Kisatchee, Lena, Fairmount, and as far east as Harrisonburg, in 
Louisiana. 
Along the southern border of these beds the exposures are by no 
means satisfactory. They usually pass under the Frio clays in such 
a way as would lead to the inference that the sandstones underwent 
considerable erosion during the period in which the Frio beds were 
deposited. The Fayette beds dip S. 30° E. 
Succeeding the Fayette beds the Frio clays occupy a belt of country 
of somewhat irregular width but probably never exceeding 15 miles. 
The Frio beds are dark to pale blue, brown, red, yellow, and green 
clays, with a few thin strata of a ferruginous sandy conglomerate. 
Some thin beds of sand appear interbedded among these clays, 
