Malott: The "Anierican Bottoms'^ Region 55 



645 feet above the road leading east from the church, in the 

 northwest portion of section 34. These gravel beach lines 

 have no relation to the water level of the "American Bot- 

 toms'' lake. No beaches are preserved in the ''American 

 Bottoms" basin. The 625-foot contour line is the third de- 

 pression contour in the basin, but it is restricted to small 

 areas near where the streams enter the openings. The total 

 depth of the basin from the lowest point in the rims to the hole 

 where the water escapes from the basin is about 65 feet. 

 Some further figures reveal interesting features. Bridge 



Fig. 10. Small re: eiil \ allr\ lea*liii,u uii the pre-glacial ••Aiiieiieuii 

 Bottoms" valley north of the road at the west side of section 26. The 

 glacial ontwash sand is being rapidly remo^'ed here. Photograph by I*. B. 

 Stockdale. 



Creek drains approximately 3,900 acres or about 6 square 

 miles. The water enters the largest inlet cave near the north- 

 west corner of section 25. Sink-inlet number 2, about one- 

 fourth a mile to the west, receives the drainage waters from 

 approximately 1,100 acres. Sink-inlet number 3 or the east 

 one in the southeast portion of the southeast quarter of sec- 

 tion 26, receives the drainage waters from about 170 acres. 

 The smallest sink-inlet, number 4, just to the west of num- 

 ber 3, receives the drainage waters from about 60 acres. The 

 sink south of the road in the southern half of section 26 re- 

 ceives the drainage waters from approximately 60 acres. 



