Floridan and Biscayne Aquifers
Sinkholes from subsidence event, Florida, February 1998. Over 700 sinkholes formed over a 20-acre area in response to well drilling. A well had been drilled about 20 feet into a cavity,
when air-lift well-development methods began being used. Immediately after, small sinkholes started appearing in the surrounding
area. Subsidence continued for several hours, with sinkholes closest to the well expanding to become the largest in the area. (Photo by Ann Tihansky)
Photos of Karst Features
Karst produces distinctive topographic features that can be prominent and distinctive. There are photographs available of the following karst features in the Floridan and Biscayne aquifers:
- Sinkholes
- In-Stream Sinkholes
Featured Publications
- Reese, R.S., and Richardson, Emily (2008) Synthesis of the hydrogeologic framework of the Floridan Aquifer system and delineation of a major Avon Park permeable zone in central and southern Florida: USGS Scientific Investigations Report 2007-5207, 60 p.
- Spechler, R.M., and Kroening, S.E. (2006) Hydrology of Polk County, Florida: USGS Scientific Investigations Report 2006-5320, 114 p.
Helpful Contacts
There is a USGS a USGS scientist you can contact for more information about this aquifer.



