Editor's note: This story was produced by National Publlc Radio's reporter in the Pacific Northwest. Our Marv Hoyt spent an afternoon with her touring the phosphate mining district of southeast Idaho.

SODA SPRINGS, Idaho - Here’s an image you usually don’t see without the help of Photoshop: two-headed fish. Pictures of deformed baby trout with two heads show up in a study of creeks in a remote part of southeast Idaho.

The study examined the effects of a contaminant called selenium. It comes from a nearby mine owned by the agribusiness giant, J.R. Simplot. Critics say the two-headed trout have implications beyond a couple of Idaho creeks.

Marv Hoyt stands near Sage Creek in a baseball cap he normally doesn’t like to wear out here. It says Greater Yellowstone Coalition, his employer. The environmental group hasn’t won many friends in Idaho’s phosphate mining district.

To read the entire story, click here.