Workers set up a tripod Sunday on the Tanana River in the tiny community of Nenana, about 55 miles south of Fairbanks.
As soon as the ice begins to move, the tripod tips on the shifting ice and stops a clock.
The 98-year-old game is a popular form of wagering in Alaska, drawing entries from across the state and elsewhere.
The Fairbanks Daily News-Miner reported several dozen spectators watched Sunday as crews raised the tripod on the ice, which usually moves between late April and the first two weeks of May.
People pay $2.50 a guess to predict when the ice goes out in the river.
Last year’s classic produced a jackpot of $318,500.
More Northwest Headlines
Tourists flee Chelan as wildfire threatens homes 12:45 p.m. Coroner identifies 2 victims of plane crash near Oroville 1:13 p.m. Vancouver City Council weighs personal fireworks ban 1:12 p.m. Appeals court upholds sentence in 1993 Yakima County slayings 1:11 p.m. Two die in RV camper fire near Chattaroy 1:09 p.m. Woman drowns after being pulled under ship in Columbia River 1:08 p.m. Mayor who made racist comments about Obamas resigns 1:07 p.m. U.S. seed plan aims to protect land after natural disasters
Our new comment system is not supported in IE 7. Please upgrade your browser here.