Some Northeast Iowans Fear Expanded "Frac" Sand Mining
Northeast Iowa is known for the big, scenic hills that dot the Mississippi River Valley and beyond. Many of those hills contain sandstone. They can be used in hydraulic fracturing for oil and gas.
But some residents are concerned that more sand mining would harm the area’s environment.
Iowa Public Radio’s Sarah McCammon looks at the current state of “frac” sand mining in Iowa…and the potential for more.