BEACHES OF LAKE WARREN. 761 



between 680 and 690 feet. This altitude harmonizes more nearly with the 

 Arkona beach than with the Forest. There seems to be no definite shore 

 in this district below the level of these sand ridges to correlate with the 

 Forest beach. The general altitude is 15 to 20 feet higher than Gilbert's 

 estimate of the sand in the district north of the Maumee. It is possible, 

 however, that the sand north of the river reaches an equall}' high altitude, 

 Gilbert's estimates having been made when there were fewer data than now 

 concerning altitudes. 



There is a strip of sand south of the Maumee River setting in a mile 

 or so above Napoleon and leading nearly due east for 9 or 10 miles. It 

 consists of a series of overlapping ridges that trend west-southwest to 

 east-northeast. The well-defined ridges are usually continuous for 1 to 2 

 miles, but several are a half mile or less in length. The ridges are 10 to 

 20 feet in height and 50 to 100 yards or more in width. The base seems 

 to be nearly uniform at an altitude about 680 feet above tide. The mode 

 of overlapping is such as to indicate that the ridges were built up succes- 

 sively in a series from east to west by winds blowing from the west. 



From the eastern end of this system of ridges near McClure there is 

 an intei'val of about 8 miles to Weston, in which the sand shows only 

 occasional ridging but forms a thin coating on the plain. The trend of 

 this part of the shore being southeastward it was unfavorably situated for 

 the action of the west or strong winds. At Weston a prominent sand ridge 

 sets in which leads in an east-northeast course to Bowling Green, a distance 

 of 8 miles, and is continued in faint form 8 miles fai'ther in the same 

 direction along the north side of Portage River. The altitude of the plain 

 north of this ridge is about 675 feet above tide, and there appears to have 

 been a shore near the line of this sand ridge ; but the ridge was evidently 

 wind drifted. Its highest points rise above the 700-foot contour, and one 

 dune in Bowling Green reaches 720 feet. 



There are occasional sand ridges north of this main ridge. A conspicu- 

 ous instance is found in a belt of ridged sand which sets in near Craws 

 station, 4 miles north of Bowling Green, and leads west' southwest, with 

 occasional gaps, 3 or 4 miles. The base of this sandy belt stands near the 

 670-foot contour, as shown by the electric railroad profile, and the ridges 

 rise 5 to 20 feet above that level. A sand bar seems to have formed here 

 at about lake level that was subsequently ridged by wind. East from 



