LivewellOregon · Reservoir
Cottage Grove Reservoirs
Is the fish you caught here safe to eat? Below is every consumption advisory on file for Cottage Grove Reservoirs, by species and size, in plain English — plus what's legal to keep.
1 species with advisories · contaminants: Mercury
Oregon also has statewide guidance
Oregon publishes rules that apply to reservoirs across the state — 4 recommendations covering 2 species — in addition to anything listed for Cottage Grove Reservoirs below.
Strictest statewide rule: Largemouth Bass — For women who may become pregnant, pregnant or breastfeeding women, and children under 15: limit to two meals per month due to elevated Mercury.
What's safe to eat from Cottage Grove Reservoirs
All Other Species
| Size | Who | Guidance |
|---|---|---|
| All sizes | General population | Limit to one meal per month due to elevated Mercury. |
| Women who may become pregnant & children under 15 | For women who may become pregnant, pregnant or breastfeeding women, and children under 15: do not eat due to elevated Mercury. |
Source: official advisory· updated 2026-09-22
Is it legal to keep?
These are Oregon's statewide limits — a water-specific rule may override them. Always verify the current regulations before keeping a fish.
| Species | Size | Daily limit | Open season | Keep season |
|---|---|---|---|---|
| Rainbow Trout | 8" min | 5 | Year-round | Same as open |
| Cutthroat Trout | 8" min | 5 | Year-round | Same as open |
| Brown Trout | 8" min | 5 | Year-round | Same as open |
| Brook Trout | — | 5 | Year-round | Same as open |
| Bull Trout | — | 0 | Year-round | Same as open |
| Kokanee | — | 10 | Year-round | Same as open |
| Mountain Whitefish | — | — | Year-round | Same as open |
| Lake Trout | — | — | Year-round | Same as open |
| Largemouth Bass | — | 5 | Year-round | Same as open |
| Smallmouth Bass | — | 5 | Year-round | Same as open |
| Walleye | — | — | Year-round | Same as open |
| Northern Pike | — | — | Year-round | Same as open |
| Black Crappie | — | — | Year-round | Same as open |
| White Crappie | — | — | Year-round | Same as open |
| Bluegill | — | — | Year-round | Same as open |
| Yellow Perch | — | — | Year-round | Same as open |
| Channel Catfish | — | — | Year-round | Same as open |
| White Sturgeon | — | 0 | Year-round | Same as open |
Official rules: Oregon — Oregon ODFW zone-default