Lake levels at four Utah reservoirs are dropping so fast that Division of State Parks officials are warning boaters to be careful of submerged or partially submerged hazards.

The most hazardous areas at Willard Bay, Scofield, East Canyon and Pineview have been marked, but "the water is receding so rapidly that park personnel are having a difficult time keeping the hazards marked," said state parks information officer Tish Poulson.Boaters are advised to stay at least 150 feet from hazard buoys.