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.' as habitat for endangered fishes as well as augmenting flows in important segments of the Colorado and Green Rivers. Yampa River (U.S. Fish & Wildlife Service 1990): , . · The "historical" flow pattern ("percentile flows that occur naturally"), based on a derived monthly regime that included 68,800 acre feet depletion of historical flow, will be maintained. Green River (U.S. Fish & Wildlife Service 1992): · Between April 1 and May 15 releases from Flaming Gorge ramp upward (< 400 cfs/day) with the trend measured in the Yampa. Releases from Flaming Gorge will correspond to the peak flow in the Yampa to yield flow between 13,000 - 18,000 cfs for 1 (dry year) - 4 (wet year) weeks between May 15 and June 1. This may require release of 4,000 - 4,700 cfs from Flaming Gorge for the duration of the peak; if peak flow in the Yampa is < 9,000 cfs (very dry year), release from Flaming Gorge will be 4,000 - 4,700 cfs for one week corresponding to the Yampa peak: flow. · Releases from Flaming Gorge will ramp down (< 400 cfs/day) to 2,000 cfs for at least one week and then to 1,100 - 1,800 cfs atJensen (first gauge below the Yampa-Green confluence) by ca. June 20 on dry years, July 10 on normal years and by July 20 on wet years (target dates can be adjusted as new information on larval drift and entrainment in nursery areas becomes available). Hourly flows at Jensen will be maintained at 1,100 - 1,800 cfs (:1:12.5%) until ca. September 15; compensation for freshets from the Yampa (natural events) is not required. Water released from Flaming Gorge during this period will be from the warmest strata possible in the reservoir to produce temperatures in the Green River at Jensen that are no more than 50C colder than temperatures in the Yampa at its confluence with the Green. · From September 15 to November 1 flows will be as above, except during wet years when a range of 1,100 - 2,400 cfs (:1:12.5%) will be allowed. 53 ·