Old snow stays in Rockies, adds to glaciers' size - Boston.com

Snow is already piling up in the high country, but not all of the unusually deep snow from last winter has melted. As a result, some glaciers and snowfields are actually gaining volume this year.

Scientists have measured new ice in Montana's Glacier National Park and atop Colorado's Front Range mountains. In northwest Wyoming, there is photographic evidence of snowfield growth after Bob Comey, director of the Bridger-Teton National Forest Avalanche Center, compared photos of peaks from year to year.

His images taken before snow started falling again this autumn show what appears to be significantly more ice in the Teton Range compared with two years ago.

Last spring, record snow depths and avalanches around Jackson Hole gave way to concern about possible flooding, but fairly cool weather kept much of the snow right where it was. The flooding that did occur, at least in Wyoming, was less severe than feared.

"I've never seen a season with a gain like we've seen this summer," Comey said.