Surface geology and agricultural conditions of Michigan . rce of supply for these wells is probably in thedistrict to the south where a loose textured drift is present at thesurface, and where the altitude is much higher than in the claycovered part of the Ontonagon basin. For the district east of the Meridian of -Marquette the writer hasalready published in Water Supply Paper No. 160 of the U. Survey a special report on the flowing well map from that report is here presented showing the extent offlowing well districts and also the areas not yet tested in whichthere is
Surface geology and agricultural conditions of Michigan . rce of supply for these wells is probably in thedistrict to the south where a loose textured drift is present at thesurface, and where the altitude is much higher than in the claycovered part of the Ontonagon basin. For the district east of the Meridian of -Marquette the writer hasalready published in Water Supply Paper No. 160 of the U. Survey a special report on the flowing well map from that report is here presented showing the extent offlowing well districts and also the areas not yet tested in whichthere is a probability of obtaining flowing wells. (See Fig. 23) The flowing wells are in pari from glacial and lake deposits andin part from rock Formations, in consequence of the dip of thestrata water ;ii>sori><i in the northern and central parts of (his<-;i^|-ni end of the peninsula passes toward the basins of LakeHuron. Lake Michigan and Green Bay, and maintains sufficient headto flow at moderate elevations a hove lliese water THE NORTHERN PENINSULA. 90 The most important districts with flowing wells from glacialand lake deposits are found around Pickford, and between Rudyardand Fiber. There are also flowing wells in Emerson at the mouthof Tahquamenon Kiver, and at several points in the Tahquamenonswamp above the falls—in the vicinity of Soo Junction, Newberryand Dollarville as well as in recesses in the moraines west andsouth of the swamp, notably at Strong and Eckerman and southof Dollarville. The special report may be consulted for data as todepth, rate of flow, temperature of water, etc. The water is gener-ally of excellent quality. The flowing wells from rock are found at numerous points alongthe north shore of Lake Michigan and the west shore of GreenBay and the borders of Big Bay de Noc and Little Bay de Noc,where altitudes are but a few feet above lake level. The qualityof water is not so uniformly good as in the flowing wells fromthe drift since i
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