204 Tne American Geologist. March, i8i(7 
sharp bend to the northwest. In the village of Damascus it 
is well represented, and one mile northwest from there it rises 
into high hills which are remarkably steep and comparable in 
size with those which make up the Adeline belt. Northwest- 
ward from this area of special development, it extends up a 
small valley as a straight line of high, very steep, cone-shaped 
knolls, which again culminate about three miles northeast of 
Lena. This I would prefer to consider as the western end of 
the belt, for, although its extension northwestward nearly to 
the edge of the Driftless Area is marked by a discontinuous 
line of knolls, beyond the point of special development above 
indicated it has ceased to form a well marked deposit. Lim- 
ited thus, its length is about twenty miles. 
The Ordnc/ecille belt. — The mapping of this belt is as yet 
very incomplete, and its situation, except at a few points, has 
not 3^et been definitely determined. Its existence as a main 
belt is known from the fact that, in going northward from 
the Cedarville belt along any line, no stratified drift is en- 
countered until on a belt which passes about two miles south 
of the village of Orangeville, when indications of watervvorn 
gravel and sand are invariably met with. One deposit, prob- 
ably corresponding to the "'areas of special development" in 
the other belts, occurs on a hillside two miles due south of 
Orangeville. The chief point of development, however, is 
found just north of Winslow in the Pecatonica valley, where 
it rises into a very prominent knoll and a number of associa- 
ted ridges. Here the belt terminates. 
The Monroe belt. — Deposits of stratified gravel and sand, 
occurring partly in Monroe, Wisconsin, but chiefly southward, 
have been described by Chaniberlin and Salisbury in the 
Sixth Annual Report of the U. S. Geological Survey. I have 
examined the deposit south of tlie tftvvn, and, from its heavy 
development, its northwest and southeast trend, and its ap- 
parently fitting into our system of glacial drainage, I consider 
it as the western end of one of the main belts. ' It probably 
corresponds to one of the " areas of special development" of 
the more southern belts; but southeastward from Monroe it 
may be scarcely traceable, there being no valleys to favor its 
development. 
Having completed this brief description of the main belts, I 
will dismiss the secondary belts by the statement that they 
