Fig. 9. Chert gravel on Neosho-Cottonwood Divide. Exposure of hilltop chert gravel in Emporia, Kansas. The water tanks in background are situated on the drainage divide between the Neosho River and Cottonwood River valleys.
Kansas Geological Survey
Web version March 18, 1998
http://www.kgs.ku.edu/Current/1997/aber/fig9.html
email:lbrosius@kgs.ku.edu