210 



some degree of stratification. The sand varies in thickness from a thin 

 coating to 100 feet or more. 



To the south of New Harmonj- the same type occurs, but in many 

 places it appears a true sandy loam. In addition to the areas of sand 

 mentioned above, many areas of small extent and varying quality occur 

 In the lower bottoms along the river. 



4. The Deposits Alon^ the Ohio River.— Great bans and deposits of 

 sand occur in the bends of the Ohio River all along Its course, but no 

 valley deposits of Importance occur until below Rockport. From this point 

 to the junction of the Ohio and the Wabash there is a continuous deposit 

 of sand except where broken by the bluffs coming down to the river, as at 

 Rockport. The most characteristic occurrence of the sand is in a narrow, 

 persistent ridge lying only a short distance back from the river. The slope 

 on the river side is rather abrupt while Inland the sloi>e is long and gentle. 

 This ridge seems to have been formeil l>efore the river cut its channel down 

 to the present level. During times of overflow the coarser materials were 

 deposited near the channel and the finer grades carried farther Inland, 

 thus forming a natural levee along the river. 



5. The Deposits Aloii;/ White Hirer and Its Tributaries. — Both forks 

 of White River have considerable deposits of sand and gravel along their 

 courses and have contributed much to road nmterial. building sand, etc. 

 Along the east fork large (|uaiitities of .si\nd occur in the bed of tlie river 

 at Brownstown. and south of Bedford old stream deposits furiiisii much 

 sand for ballast and other purposes. Here on the south side of the river 

 the sand is built up into dune-like hillocks. At West Shoals considerable 

 sand occurs in the present valley, and also on the toj) of the blufif is a 

 deiK)sit made by the stream in its early history. Again to the west at 

 I'ortersville river sand occurs on tlie blufif. From this point to Petersburg 

 the sand continues in an irregular line, and from there to Hazleton the 

 area widens and btH-omes a part of the line of the Wabash deposits. 

 Through Greene and Davle.ss Counties considerable sand occurs along thi> 

 west fork, but in most places where it occurs it becomes a sandy loam. 

 To the northwest of Bloomfield some magnetite is found in the sand, and 

 similar dei)osits of less extent occur at other iMiints to the north along 

 the main stream and its tributaries. 



