64 OIL FIELDS OF TEXAS-LOUISIANA COASTAL PLAIN, [bull. 212. 
Among the shallow wells the following sections show near Abbeville, 
in Vermilion Parish, La. : 
Section near Abbeville, Vermilion Parish, La. 
Feet. 
1. Yellow clay 30 
2. Blue clay 20 
3. Sand _ 30 
4. Dry blue and gray clay . 25 
5. Sand . 25 
6. Gravel 40 
In Arcadia Parish, 12 miles north of Crowley, a section is as follows: 
Section 1 .' miles north of Crowley, Arcadia Parish . La. 
Feet. 
1. Gray clay 50 
2. Blue clay . . . 100 
3. Gray sand . . 20 
4. Gravel 35 
At Welsh, in Calcasieu, a well gives a section as follows : a 
Section at Welsh, Calcasieu Parish, La. 
Feet. 
1. Soil i to f 
2. Mottled clay 70 
3. Red quicksand 20 
4. Chalkyclay.. 50 
5. Blue clay .... 10 
6. Beach sand and gravel 100 
In the western portion of Louisiana these gravels lie at a consider- 
ably greater depth and are somewhat thinner than in the eastern 
portion of the field. At Lake Charles the Walkins well No. 1 shows 
44 feet of gravels mixed with sand, underlying sand, at a depth of 400 
feet. At depths of 550 and 600 feet gravels also occur in this well, 
which otherwise shows nothing but sands and clays throughout its 
entire 2,400 feet. At Sulphur the gravels appear at 300 feet and are 
45 feet thick, and at Vinton, about 12 miles to the southwest, the 
gravel beds are reached at a depth of 440 feet, having in that locality a 
thickness of 25 feet. Here they are strong water-bearing beds. 
In the Texas regions the gravels disappear in the vicinity of Hillister, 
in Tyler County, on the Texas and New Orleans Railroad. This is the 
farthest south at which the siliceous pebbles have been seen. They 
also pass under the Columbia sands to the west in the neighborhood of 
Shepherd, in San Jacinto County, on the Houston, East and West 
Texas Railway. They are, however, reported from every well drilled 
to the south of the Columbia outcrop. On Spindletop they appear in 
the Higgins well No. 2 at 120 feet. In the original Higgins well of 
« Clendenning, loc. cit. 
