Aug 25, 2025

Yellowstone River Fishing Report
CFS: 1570
TEMP: 61-67°

Ashby Bell with a clean Valley specimen! Photo (and catch): BFD!

Water temps have been hanging in there, currently around 61-67°F. We've had a little more high haze / smoke in the air this week, which means peach and pink hoppers often look best to the fish. Try a mix of sizes from 8-14 depending on if you want to support a tungsten nymph, or if you want to fish just a single smaller hopper. Floating ants patterns have been working well too, especially in the Valley or above Yankee Jim. 

It has been busy out there, be sure to give everyone a little extra room and be courteous to your fellow anglers.

Give us a call for more info or to book a trip!  1-406-222-7130.

Jackson Bruff with a solid bow!  Photo: Guy Thomas

Nice Cutthroat Sarah!  Photo: Guy Thomas

Fly Patterns: 

Purple Bruce #8-12
Morrish Hoppers #6-14
Grand Hopper #8-12
Sweetgrass Hopper #8-10
Thunderthighs Hopper #8-14
Thundergrass Hopper #18-14
Fancypants Hopper #8-114
Elk Hair Caddis #14-18
Butch Caddis #14-16
Missing Link Caddis #14-16

Rubber Legs (black) sizes #4-6
Rubber Legs (black and coffee) sizes #4-6
Tung. Bead Bugger Legs (black and coffee) size #6
Tung. Bead Bugger CAMO (black and coffee) size #6
Yellow Spot Sally #14-16
Bead Head Prince sizes #8-10
Various Euro nymphs sizes #12-14
Blow Torch Black #12-18
Duracell Bomb Brown #12-16
Torch Light #14-16
Little Spankers #14-18

Black Leadeye streamer sizes #4-6
Yellow Silk Kitty sizes #2
Black or Olive Sex Dungeon sizes #4-6
Coffee Sparkle Minnow #4-6
Slick Willie (various colors sizes #1/0, 4)
Lawson's Sculpin Black sizes #2-4
Kill Whitey Olive/Black #4
Lawson's Olive Black sizes #2-4

Real Time River Flows