Big Lost River

Flow now

Big Lost River Below Moore Div Nr Moore ID, 2 mi from the river.

0cfsat build, Nov 12, 11 AM MT

The typical week here, from 7 years of record: 0 cfs to 39 cfs, around 3 cfs.

Also gauged at Big Lost River Nr Leslie ID: 33 cfs, Nov 12.

Snowpack

0.9 in of water in the snow at Hilts Creek and 2 more stations, against a median 1.9 in for the date (49 % of normal).

The snowpack here usually builds from Oct 30, peaks Apr 12 and is gone by May 21; runoff follows the melt.

The season, November

Usually workable this week. Pick your window and fish it well.

• Midgessizes 18 to 22
• Small eggs and worms
• Pheasant tail and zebra midge nymphsunder an indicator

Typical for the week over 7 years: 0.0 to 39 cfs. Running 0.0 cfs today, inside that range. Flows are not forecast; check the gauge the day before.

Brown Trout are spawning (October to December). Stay off clean, light-coloured gravel in riffle tails and pool tailouts, and leave paired fish alone.

Brook Trout are spawning (September to November). Stay off clean, light-coloured gravel in riffle tails and pool tailouts, and leave paired fish alone.

Mountain Whitefish are spawning (October to December). The egg bite behind spawning whitefish is the best winter nymphing of the year: an egg pattern below the riffles.

• Flows swing a lot this week most years. Carry both a heavy nymph rig and a dry-dropper and let the gauge decide.
• Egg patterns in the runs below the spawning gravel, never on it.

Written by the app's rules engine from the calendar, the gauge record and the snowpack, not by hand, so it says only what the data says. The weather for the week comes with the app.

Fly shops on this water

• Lost River Outfitters KetchumWebsiteFishing report, updated Apr 2
• Silver Creek Outfitters KetchumWebsiteFishing report, updated Nov 6