Thursday, June 20, 2013

Abandoned Sand & Gravel Pits


In Michigan there are:
 
60,578 abandoned sand & gravel pits

8,469 abandoned and sealed

6,630 active

5,826 intermittent

650 new mines

516 non-producing

1,471 temporarily idled
Posted by at

1 comment:

Subscribe to: Post Comments (Atom)