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| Event | Ice-Out |
| Date of Sighting | 04/23/12 |
| Comments | "The ICE IS OUT. The Tanana River officially went out at 7:39 p.m. Alaska Standard Time!!" Read the news and view the photos and thanks to the Nenana Ice Classic in Nenana, Alaska. (note: The Nenana Ice Classic is an annual contest held in Alaska since 1917 to guess the exact time the Tanana River ice breaks up in the area of Nenana. A tripod is placed on the ice with a long tether to a clock on the shore. When the river ice begins its break-up the tripod will begin to move downriver and the tether pulls on the clock thereby stopping the clock.) |
| Location | Tanana River |
| State/Province | AK |
| Latitude | 64.54 |
| Longitude | -149.09 |
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