People who’ve seen frac sand mining up close always comment on the scale of the operation. Noise, dust, traffic– 24/7.
Maiden Rock, WI, which is just across the river from Red Wing, has an underground mine, which is a little unusual. One supposed advantage of this is that much of the mining activity is underground.
A week ago, by coincidence, I met the son of a retired couple who live next door to the Maiden Rock Mine. They own about 15 acres of forested land that runs up one side of a valley next to the sand processing plant and the shaft entrance. With their OK, I shouldered my camera and hiked up the hill to see what this mine looks like up close.