59 



ties. These bills form the divide between the tributaries of the Muscata- 

 tucli, one of the chief branches of the East Forlc. and the headwaters of 

 Silver Creek, which flows south into the Ohio. It is interesting here to 

 note that \A:iter falling on the high bluffs of the Ohio near Hanover, 

 and to the north within one mile of the river, does not there flow into the 

 Ohio, but finds its way into the Muscatatuck and the East Fork, and after 

 covering a distance of more than 300 miles flows into the Ohio at the south- 

 western corner of Indiana. The "Haystacks" are conical shaped hills 

 which, seen from a distance, have the appearance of haystacks ; these are 

 plentiful in the central part of Lawrence County. "Rock Houses" are 

 large openings between and under large rock masses due to undercutting 

 and the breaking off and tilting of the rocks. "Honeycombs" are rock sur- 

 faces in which the softer parts have been weathered out, giving a porous, 

 honeycombed appearance. These are found in the region of the Oolitic 

 Limestone and the Mansfield Sandstone. One of the most interesting spots 

 to visit is the "Pinnacle," near the town of Shoals, the county seat of Mar- 

 tin County. Here a high ridge of Mansfield Sandstone, one hundred ninety- 

 six feet above the level of the stream, terminates abruptly within a few 

 yards of White River. Large masses of roclc that have broken off, lie 

 around the foot of the ridge in every position. From this point one ob- 

 tains a good view of the character of the topography of this I'egion. To 

 the northwest of this ridge the formations have been cut through by dis- 

 integrating forces, and there has been left standing at some distance from 

 the head of the laviue a tall mass of sandstone, which has received the 

 name of ".Jug Rock." from the fancied resemblance to an old-fashioned jug. 

 On the upper side it is forty-five feet high and on the down-hill side, seventy 

 feet high ; it is capped with a flat projected layer of harder sandstone. At 

 the south of the deep-wooded ravine is the "Glen," an under-cut sandstone 

 cliff with an intermittent cascade. Across a valley to the north is "House 

 Rock," a large sandstone cave, the entrance to which is about thirty-five 

 feet high, and the main room, with an opening in the top, is very much 

 higher. It is formed principally by the tilting of large roclc masses. The 

 sandstone in front of the cave is weathered into an elaborate fretwork. 

 Other points of interest as one goes down along the river are the "Acoustic 

 Rock," "Buzzard's Roost," "Hanging Rock," "Kitchen-middings," "Shell- 

 bank," and the "Hindostan Falls." 



In Washington, Lawrence, Orange and Monroe counties the subter- 

 ranean drainage has an important place. The ground water working along 



