Beta

GuidedFloats is in beta. The full site launches March 1, 2027. The mobile app follows.

Guides: claim before March 1, 2027 and your first full season of Premium is free. Claim your founding spot →

HomeWatersMontana › Tailwaters
Montana waters

Montana tailwaters

The river below a dam. Releases, not weather, decide the flow, and cold water drawn from depth keeps trout alive far south of where they could otherwise live.

Gauge locations. Map data © OpenStreetMap contributors.

3 tailwaters in Montana

WaterDischargePercentileTemp24hGuidesPrograms
Bighorn RiverMTBighorn R bl Yellowtail Afterbay Dam nr St. Xavier1,690 cfs14thn/a↑ rising5none yet
Missouri RiverMTMissouri River bl Holter Dam nr Wolf Cr MT3,160 cfs21st60.6 F→ steady4none yet
Ruby RiverMTRuby River below reservoir near Alder, MT209 cfsn/an/a→ steady4none yet

Looking for something else in Montana? See all 16 Montana waters, with the guides and recognition programs attached to them.