OUTER MORAINE OF THE SCIOTO LOBE. 341 



found to support the view that it was markedly greater in the basins than 

 on the elevated hilly tracts that border them. On the contrary, evidence 

 against great excavation is found in the district south of the glacial 

 boundary near the southern extremitj^ of this glacial lobe where the two 

 types of topography are nearly as much in contrast as within the glaciated 

 district, there being east of the meridian of Hillsboro, Ohio, and Maysville, 

 Ky., a more elevated and more hilly district than there is west of that 

 meridian. For further discussion of topographic features see Chapter II. 



THE OUTER OR CUBA MORAINE. 



An earlier moraine than the outer one described by Chamberlin^ was 

 discovered by the writer in the southwestern part of the district covered by 

 the Scioto lobe. It is apparently to be classed with the early Wisconsin 

 series, while the one described by Chamberlin seems to belong to the late 

 Wisconsin series. So far as recognized, it lies outside the later ones only 

 in the southwestern part of the district, though it may possibly have cor- 

 relatives in portions of the tangled systems of moraines formed on the 

 eastern side of the lobe. The name Cuba is taken from a village that 

 stands on the crest of the moraine near the middle of the morainic loop. 



DISTRIBUTION. 



On the north side of "Beech Flats," in Pike County, and near the 

 eastern line of Highland County, Ohio, this moraine becomes clearly sepa- 

 rated from, and distinctly developed outside of, the later ones. It is readily 

 traced westward along the south side of Rocky Fork, from the mouth to 

 the source of that stream, the villages of Cynthiana, Carmel, and Marshall 

 being situated near its southern margin and Hillsboro just north of it. Its 

 breadth is 1 to 2 miles. In the vicinity of Hillsboro the creek winds among 

 sharp gravelly knolls, which have a contour strikingly different from the 

 remainder of the belt, and which may prove to belong to the earlier drift 

 sheet. Northwest of Hillsboro the moraine for several miles is not well 

 developed, but a mile or two southeast of New Vienna it reappears in con- 

 siderable strength. From that point it takes a westward course, its outer 

 margin being in surveys 2357, 753, 4656, 4233, and 4234, Highland County. 

 Continuing westward into Clinton County its margin at the East Fork of 



1 Third Ann. Kept. U. S. Geol. Survey, 1883, pp. 339-341. 



