The tripod was raised for the 100th time on the Tanana River Sunday, kicking off the 2016 edition of the Nenana Ice Classic.
That first year, 1917, the jackpot was $801. The largest jackpot came in 2014 when it hit $363,627. On average, 290,000 guesses are made each year. You have until April 5 to make your pick. As of March 1, the river ice was 40″ thick where the tripod now stands.