Tar Creek

Oklahoma Department of Environmental Quality:

• http://www.deq.state.ok.us/LPDnew/Tarcreek/

(The above site has about a dozen links to Tar Creek studies.)

Federal sites:

• http://www.epa.gov/earth1r6/6sf/pdffiles/0601269.pdf
• http://www.epa.gov/earth1r6/6sf/pdffiles/5yeartarcreek.pdf
• http://ok.water.usgs.gov/quapaw/

Other keywords to try searching for, besides Tar Creek:

groundwater, water, mines, roubidoux, "picher oklahoma", "ottawa oklahoma"

Miscellaneous sites:

• http://www.health.state.ok.us/PROGRAM/envhlth/sites/ottawa.html
• http://www.coe.ou.edu/ebel/tarcreek.htm (only aerial photos so far)