Bighorn Reservoir Receives Record March Runoff
By Jackalope Jordan

Posted: April 11, 2018

The Bighorn Reservoir recorded the highest March runoff ever last month beating out the previous high mark recorded last year.

Montana Untamed reports the lake received 308,000 acre feet of water last month. That’s more than twice the normal level.

Last year’s March inflow was also the previous record at 307,000 acre feet. April and May also set records.

Due to the large amounts of water, officials have decided to keep the reservoir water levels below the minimum required to open Horseshoe Bend Marina to boat launches until June 1. That date is about a week later than normal, according to Montana Untamed.

The extra water released at Yellowtail Dam means the Bighorn River will receive 7500 cubic feet per second of water, about three times the normal amount this time of year.

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