**UPDATE: Kirkland and his crew were able to raise $16,700 for BBBS. They took 37 Littles and their 37 Bigs to Eldora on Saturday, April 4 to ski. Here's the follow-up story: http://on9news.tv/1bXaIBN**

KEYSTONE – If you think skiing 10,000 vertical feet in one day is hard, try two million.

It's likely no one else will get near the vertical feet that Michael Kirkland and his 20 ski partners are aiming for.

"It's a little insane," Kirkland admitted.

They're with Denver's Six-Pack Sports, and they're skiing for 12 hours straight, nonstop – except for a short interview with 9NEWS to talk about raising money for Big Brothers, Big Sisters Colorado.

"We've already raised about $13,000," Kirkland said.

They're doing it by skiing two million vertical feet.

"We're going to ski all day and all night," Kirkland said.

That's a lot of skiing. In fact, if you ski two million feet out of Denver, you'll end up somewhere around Santa Fe.

But even before 11 a.m., these expert skiers were on-pace, hitting 10 runs and some 25,000 vertical, with nine hours to go.

They spent much of their time skiing the Summit Express, taking one run after another.

The money they raise will go toward the Sports Buddies Ski Day Fund, which will let 42 kids in need go skiing on April 4.

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