Yes, water temperatures are cooler in beaver ponds out west, generally because of the high elevation. Many of my favorite beaver ponds "out west" are at or above 9000' and are generally in sections of streams that are not too high gradient. The night time temperatures routinely fall into the 30s and 40s out there at night throughout the summer due to lower humidity, so the streams stay nice and cool. Recent attempts at dam building by beavers in the Smokies always fail eventually. They just aren't built to withstand the stress of extremely high water that we experience every year at some point or another.
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