Wisconsin Geological and Natural History Survey home  
 
 
Research programs at the Survey
Survey news and information
Survey publications
Data
Survey staff
About the Survey
For more information
Other earth-science sites

 

Sinkhole photos

deep sinkhole

This sinkhole is extremely dangerous. At 5 feet wide and 20 feet deep, it would be impossible to crawl out without assistance.

Return to Sinkholes.

HOME | PROGRAMS | NEWS/INFO | PUBS | DATA | STAFF | ABOUT | MORE | LINKS