dinvilliers.]   Pittsburgh goal region, chap. v.        175
"swamp." The crop is cut out along the railroad, but taken in again on the west side, and occupies a strip of country encircled on three sides by Chartiers creek.
Jas. 2^-ain'spit in thepatcro^,shovisa.tS25' A. T. where the coal shows about the same as BridgeviUe Mine.
Baldwin township has a narrow frontage along the Mo¬ nongahela river, between Becks run and Streets run, with Mifflin and a part of Jefferson on the east, Snowden on the south, and Scott and Lower St. Clair west of it. Though the outcrop of the Pittsburgh coal is confined entirely to the northern half of the township, a very large tonnage has been carried from within its limits. The section of exposed rocks comprises intervals of 350' above and below the Pitts¬ burgh coal, though those above il^ are unsatisfactory here, as elsewhere in the neighboring townships.
The Nineveh synclinal, though obscure, must pass nearly through the center of the township from Blossom- vllle on the river, practically through the Point View hotel on the Brownsville road and thence on to Snowden town¬ ship, its trough line being Indented by a small anticlinal axis, which reverses the coal dip however, and divides the basin into two parts, along Becks run and Streets run. Beck's station on the P. V. and C. R. R. is at 760' A. T., and shows the Barren Measure red shales in the hill side.
From here a coal railroad diverges up Becks run for IJ miles on a grade of 26", to the foot of the plane of the Becks Run mine (Hays Est.) The check house of these extensive mines is about coal level or 970' A. T., a short surface road running from here to the front pit mouth at about 978'. All the front coal, on both sides of the ravine, is worked out, the mine road passing through a tunnel, with a fall of 9' on coal for 650 yards, crossing a ravine 200 yards wide, to the rear pit mouth (double) at about 965' A. T. A large portion of the mine has been worked by single entry system- The south-east butt entries all drain to the south-east for about 2000 yds from the main entry, before rising towards the Walton hue, and are aH drained through a "swamp" en¬ try S. S. W. out to a branch of Saw Mill ran at 965' A. T.