. [Reports vol. I-XIII]. Limestone. Shale, black, fissile. Coal. Fig. 70. Section of coal bed atSater shait. Coal near Rich-mond. This is undoubtedly the Lexington coal bed. Immediately about Richmond, and between that place andLexington Junction, some seven companies and individuals minecoal on a large scale. Over a dozen shafts and other openings 1 The record of this drill hole was furnished the Survey by Mr. S. of Carrollton. SYSTEMATIC DESCKIFTION OF COAL BEDS. Ill are in operation here, mostly adjacent to the St. Joseph branch of the Santa Fe railway. The Shafts j
. [Reports vol. I-XIII]. Limestone. Shale, black, fissile. Coal. Fig. 70. Section of coal bed atSater shait. Coal near Rich-mond. This is undoubtedly the Lexington coal bed. Immediately about Richmond, and between that place andLexington Junction, some seven companies and individuals minecoal on a large scale. Over a dozen shafts and other openings 1 The record of this drill hole was furnished the Survey by Mr. S. of Carrollton. SYSTEMATIC DESCKIFTION OF COAL BEDS. Ill are in operation here, mostly adjacent to the St. Joseph branch of the Santa Fe railway. The Shafts jary in depth from 50 to 100 ft. They all operate the same coal bed and no other over-CoaiatEichmond. lying coal bed is encountered in the shafts. The long wall method of mining is generally followed, the roof being well adapted to this. At No. 10 shaft, on the west edge of town, the followingsection was measured. The shaft is 100 ft. deep: Feet. 3 to 6 Inches. 2 to 34 to 51 to 2. Limestone. Sbale (occasionally.) Coal. Shale oi clay. Coal. Section atBichmond. Fig. 71. Section of coal bedat Bichmond. Along the entries the bottom clay is lifted and about 3 ft. ofthe roof rock is shot down in order to obtain the requisite height. At SwanwicTe, about four miles northwest of Eichmond, is theR. J. Williams shaft, on the St. Joseph branch of the Santa Ferailway. The shaft is 95 ft. deep and operates the same bed asthat mined at Eichmond. The following section was measuredhere: Feet. Inches. 74- LJILLIXJ Limestone. Shale, black, fissile. 22 10+
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