From the Sky-Hi Daily News (Jack Bakken):
Ice break-up on Lake Granby happened on Thursday, April 12, and Farr Pumping Plant officials say they could see no ice between the Plant and Granby Dam on April 10, the earliest dates shown in the plant’s records. The last remnants of ice were on Arapaho Bay at the east end of the lake until last Thursday morning. Most of the lake was free of ice by Monday afternoon, April 9. The ice-off date this year broke the standing record set in 2004, when the lake ice was gone by April 14.
Shadow Mountain Reservoir’s ice-off date was April 10 this year, breaking its April 12, 2004 record. And on Grand Lake, this year the official date for ice off was on April 13, which is four days earlier than the record-setting date in 2004.