Cold Regions Research and Engineering Laboratory
（重定向自CRREL）
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![Sampling mud sediments for contaminants that were causing waterfowl deaths at Eagle River Flats, near Anchorage, Alaska.](/Images/godic/202501/07/Eagle_River_Flats_Sampling2140.jpg")
![Simulation of terrain, depicting the probability of detecting helicopters from the center of the grid.](/Images/godic/202501/07/ProbabilityHelicopterDetection2140.jpg")
The Cold Regions Research and Engineering Laboratory (CRREL) is a United States Army Corps of Engineers, Engineer Research and Development Center research facility headquartered in Hanover, New Hampshire that provides scientific and engineering support to the U.S. government and its military with a core emphasis on cold environments. CRREL also provides technical support to non-government customers.