The ecological restoration along headwaters of the Eagle River — home of the famed 10th Mountain Division — would require scooping out millions of tons of gravel and sand to turn a straightened waterway back into a river that curves through a floodplain.
Second-seeded Denver (24-13-2) will play No. 1 Miami (Ohio) or No. 4 Providence in Sunday's regional championship (3 p.m. MDT, ESPN2). The winner will advance to the April 9-11 Frozen Four at Boston's TD Garden, where DU won the 2004 NCAA title.