. Elementary physical geography;. LAKE ST. CLAIR The mud Hats at the head of the lake are the result ojsedimentation. IMPERFECT AND OBSTRUCTED DRAINAGE 181 Many of thelakes of theUnited Stateshave disap-peared withinrecent Lake inUtah has prac-tically ceased toexist, and Tu-lare Lake, Cali-fornia, in thirtyyears has shrunkto less than halfits former size;practically ithas no finger lakesof New Yorkhave lost ameasurable partof their area inthe past fiftyyears, and thelevel of LakeErie has beenmaterially low-ered. The dim-inution has in-terfered withnavigation tosuch an e
. Elementary physical geography;. LAKE ST. CLAIR The mud Hats at the head of the lake are the result ojsedimentation. IMPERFECT AND OBSTRUCTED DRAINAGE 181 Many of thelakes of theUnited Stateshave disap-peared withinrecent Lake inUtah has prac-tically ceased toexist, and Tu-lare Lake, Cali-fornia, in thirtyyears has shrunkto less than halfits former size;practically ithas no finger lakesof New Yorkhave lost ameasurable partof their area inthe past fiftyyears, and thelevel of LakeErie has beenmaterially low-ered. The dim-inution has in-terfered withnavigation tosuch an extent. LAKE BONNEVILLE AND ITS REMNANTS The area in -white shows the former size of the lake; the smalllakes south of Sevier River are practically dry. 182 PHYSICAL GEOGRAPHY that a barrier across the outlet is contemplated in order toraise its level. There is possibly a lowering of the basin of the Great Lakes on thewestern, and an elevation on the eastern side. Recent surveys pointstrongly to such a movement of the basin. A continuance of thisoscillation, aggregating twenty feet, will practically close the lower endof Lake Erie, and cause an overflow of Lake Michigan into the Mississippi. Waves and wind currents affect lake shores in the samemanner as they alter the shores of the sea. Bars amispits are formed in the same manner; and the platformsmade along the shores of lakes do not differ materiallyfrom marine platforms. The old beach of Lake Ontario(p. 180), is now the course of a famous highway known asthe Ridge Road. Geographical Distribution of Lakes.—Lakes occurin all parts of the
Size: 1095px × 2283px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkcscribnerss
