Refrozen open water at Fairbanks to Nenana Stop 10 Photo Credits: Chas Jones A previously open spot of water now refrozen. The thickness of ice in such spots is unknown and care should be taken in such areas. Process Observed: Open Water (Refrozen)Thin IceIce Thickness Date Process Observed: Tuesday, April 16, 2013 Galleries: Fairbanks to Nenana Trip Stop 10 Gallery