508 GLACIAL FORMATIONS OF ERIE AND OHIO BASINS. 



by gravel or sand. The stream leaves the moraine near Dawn. Eastward 

 from this place to Swamp Creek, near Versailles, the outer border plain is 

 not silt covered, but is underlain by ordinary till. 



Just north of Versailles low gravelly knolls appear and constitute the 

 outer part of the moraine. From this point a plain underlain by gravel leads 

 southward along Swamp Creek Valley through Versailles, which seems to 

 be an outwash apron. It carries a few shallow basins and sloughs, but is 

 otherwise nearly plane. It stands 20 to 25 feet above the level of Swamp 

 Creek and but little below the bordering till plains. Its width is about 

 one-half mile and its east border is defined by a slough which leads from 

 the moraine southwestward to Swamp Creek, separating it from the till 

 plain, while the west border is determined by that creek. The gravel 

 plain extends south only to the junction of the slough with the creek, or 

 aboiit 1 mile from the moraine. Farther south no terraces or remnants of 

 the gravel plain were detected, both bluffs of Swamp Creek being composed 

 of till. A well in this gravel plain, 34 feet in depth, at a street corner near 

 the post-office at Versailles, was entirely throug'h gravel, and so far as 

 excavations have been made in the village the g'ravel appears to extend at 

 least to the level of the bed of Swamp Creek. It seems somewhat remark- 

 able, in view of the amount deposited near the moraine, that the deposition 

 of gravel was not continued farther south in sufficient amount to leave 

 traces along Swamp Creek Valley. Underneath the gravel the drift at 

 Versailles is reported to be mainly till, the distance to rock being 120 to 

 142 feet. 



Eastward from Versailles to Loramie Creek the outer border plain is 

 underlain by till. Loramie Creek Valley was not examined sufficiently to 

 determine whether or not it carries terraces connected with this moraine. 

 Gravel deposits occur in small amount along the valley. East of Loramie 

 Creek the Union moraine and the Mississinawa moraine are somewhat 

 closely associated for a few miles. Farther east the outer border of the 

 Mississinawa is vaguely defined, and there appears to have been no well- 

 defined drainage lines leading from it to the Great Miami. 



On the whole, therefore, the glacial drainage seems to have been less 

 vigorous from this moraine than from the main morainic system. To what 

 extent this is due to a depression of the land by which the grade of stream 

 beds was lessened, and to what extent to a slower rate of melting- and con- 



