Marinac

Custer County

Updated August 16, 2026

IDFG Access SitesActive

Current conditions

Big Lost River below Mackay Res near Mackay ID

Nearest gauge · 3.0 mi

Live1 hour ago

Flow

cfs

Gage height

0ft

Seasonal Flow

Normal

74th percentile for Sep 5 · 112-yr record

Flow · 2 weeks + 7-day forecast

Holding near ~316 cfs by Sep 12 · issued Sep 5, 2026, 10:22 AM MDT · NOAA

Site photos

Site facts

CountyCuster

Region6

Campno

Restroomno

Rampno

Dockno

ADA fishingno

Fishing / BoatingFishing

Coordinates43.90262, -113.61680

Much of the surrounding area is private property; please obey all signs and markers. Please, no pets allowed. Campfires not allowed Access is limited to foot traffic only. Please pack out what you pack in. Day use only.

Open on map Open in Google Maps

Data: Idaho Fish & Game · Source id idfg_access:249

Current conditions

Site photos

Site facts

Search Barbless.co