May, 1915.] Buried Stream Channels. 521 



THE CHANNEL SOUTH OF LOGAN. 



South of Logan the regularity is broken by the scar of a buried 

 channel. It extends in an east and southeast direction across the 

 south central part of Falls Township, Hocking County and can 

 be first distinctly seen along a west tributary to Dry Run. After 

 meeting that stream farther east it turns south past the junction 

 with Scott Creek finally burying itself under a continuous blanket 

 of Pennsylvanian rocks one mile north of the village of Ewing. 

 This channel is clearly marked by the filling — a coarse quartz 

 sandstone usually stained a reddish brown by the weathering of 

 the iron cement. Occasional well-rounded quartz pebbles may 

 be found. The depression extends as a distinct channel for a 

 distance of four miles, its width changing from place to place, 

 due both to variations in the original channel and the depth to 

 which the fihing has been removed by recent erosion. At one 

 place it is 400 yards ; where Scott Creek has cut well down into the 

 filling it is but little over 150 yards wide. 



The exact depth was not obtained but from the general level 

 of the basal sandstone beyond the borders of the channel to the 

 lowest exposed rock of the same character is a vertical distance of 

 over 100 feet. At the north a small tributary to Dry Run has cut 

 down to the Waverly almost half way across the channel. Judging 

 from this the bottom is not far below. The elevation is near 

 779 feet above sea level, while the lowest exposure to the south is 

 below 755 feet, indicating a southward gradient. Just above the 

 junction of Dry Run with Scott Creek buff colored Waverly shales 

 were found in grave diggings; across the road to the west coarse 

 iron-stained sandstone fonns the bed of the present stream, 

 giving a relief of 55 feet in little over twice that distance hori- 

 zontally. 



The abrupt curve in its course, the depth of the depression and 

 the steepness of the slopes at the sides are strong evidences of the 

 action of meteoric waters. 



THE CHANNEL SOUTH OF BYER. 



Another buried valley may be found one mile south of Byer, 

 the station at the junction of the Baltimore and Ohio Southwestern 

 and the Cincinnati, Hamilton and Dayton Railroads. It crosses 

 the present valley of Pigeon Creek where that stream receives 

 the second tributary from the west. The direction is a little south 

 of west or north of east but only along the sides of this valley 

 is the depression distinctly visible. In these outcrops it is a 

 cross-bedded quartz conglomerate enclosed on each side by drab 

 to gray argillaceous shales and sandstones. Surface weathering 

 has worn away the less resistent material thus exposing the coarse 

 conlomerate filling on the east bank of Pigeon Creek. There, in 



