Stars out and no cloud tonight, with the water lying quiet and the barometer on the way down. The productive water at Grass Valley Reservoir will be around the mouths of the creek arms. The evening is where the day comes good. Work the productive water thoroughly. Autumn rewards covering water while the fish roam.
The bites are average now
Night
The Garfield County end of Colorado holds Grass Valley Reservoir. Elevation runs to 6,414 feet. With some 201 acres of water, there is room for a boat but no need of one. Shoreline length is close to 3.2 miles, and each section fishes a little differently. It ranks high for size among our Garfield County listings. The nearest town is Silt, 4.5 miles away. For a city, Boulder is 130 miles off. No county line comes close, which keeps the paperwork simple.
There is no recorded depth, so work from what you can see. Look for where the old bank line still shows under the surface. The old creek line under the surface is the feature worth finding. Records held for Garfield County cover cutthroat trout, rainbow trout, brown trout and bluegill. County data is a starting point rather than a guarantee. Read Grass Valley Reservoir before you fish it and the day goes better.
Averages here run 66°F at the top of summer and 22°F at the bottom of winter. Cold winters and warm summers give a wide working range. Hard water holds through the cold months, breaking up near late March. The lid tends to go about late March and return around early December. Right after break-up, and again as the nights sharpen, is when to go. Plan around that when you fish Grass Valley Reservoir.
Public data does not answer the access question here. No launch point is recorded nearby, so this is a bank water unless you carry a boat in. Trout here take small spinners, spoons and, where fly water allows, a nymph or dry. Gates get locked out of season on water like this. Some stretches are reserved and marked as such on the ground. Failing this one, try Park Reservoir, 4.7 miles away. Ask locally about Grass Valley Reservoir if anything is unclear.
43%
The bites are average now
| 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| 1.4 | 2.9 | 3.4 | 1.8 | 2.2 | 3 | 3 | 2.3 | 2.1 | 0.8 | 1.3 | 2.4 | 2.4 | 2.6 | 2.9 | 2.4 | 1.8 | 0.7 | 1.9 | 2.3 | 2.4 | 2.2 | 1.9 | 1.7 |
| 37° | 37° | 36° | 36° | 35° | 34° | 34° | 34° | 36° | 43° | 47° | 50° | 54° | 56° | 57° | 57° | 56° | 51° | 48° | 46° | 44° | 43° | 42° | 42° |
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 30.16 | 30.16 | 30.17 | 30.16 | 30.16 | 30.16 | 30.17 | 30.17 | 30.17 | 30.17 | 30.17 | 30.15 | 30.14 | 30.11 | 30.09 | 30.08 | 30.08 | 30.09 | 30.1 | 30.11 | 30.12 | 30.13 | 30.14 | 30.15 |
| 71 | 71 | 72 | 73 | 72 | 73 | 73 | 72 | 71 | 60 | 55 | 53 | 46 | 42 | 40 | 40 | 46 | 51 | 54 | 57 | 60 | 62 | 62 | 64 |
Sam
AI Fishing Assistant for Grass Valley Reservoir
Morning
Afternoon
Evening
Best bite time
Best bite time
Best bite time
Best bite time
Best bite time
Best bite time
Best bite time