LivewellColorado · Reservoir
Vallecito Reservoir
Is the fish you caught here safe to eat? Below is every consumption advisory on file for Vallecito Reservoir, by species and size, in plain English — plus what's legal to keep.
2 species with advisories · contaminants: Mercury
Colorado also has statewide guidance
Colorado publishes rules that apply to reservoirs across the state — 54 recommendations covering 23 species — in addition to anything listed for Vallecito Reservoir below.
Strictest statewide rule: Largemouth Bass, Over 15" — Limit to one meal per month due to elevated Mercury.
What's safe to eat from Vallecito Reservoir
Northern Pike
| Size | Who | Guidance |
|---|---|---|
| All sizes | General population | Do not eat due to elevated Mercury. |
Source: official advisory· updated 2026-07-09
Walleye
| Size | Who | Guidance |
|---|---|---|
| All sizes | General population | Do not eat due to elevated Mercury. |
Source: official advisory· updated 2026-07-09
Is it legal to keep?
These are Colorado'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 | — | 4 | Year-round | Same as open |
| Brown Trout | — | 4 | Year-round | Same as open |
| Cutthroat Trout | — | 4 | Year-round | Same as open |
| Lake Trout | — | 4 | Year-round | Same as open |
| Brook Trout | — | 10 | Year-round | Same as open |
| Kokanee | — | 10 | Year-round | Same as open |
| Walleye | — | 5 | Year-round | Same as open |
| Sauger | — | 5 | Year-round | Same as open |
| Largemouth Bass | — | 5 | Year-round | Same as open |
| Smallmouth Bass | — | 5 | Year-round | Same as open |
| White Bass | — | 10 | Year-round | Same as open |
| Striped Bass | — | 10 | Year-round | Same as open |
| Hybrid Striped Bass | — | 10 | Year-round | Same as open |
| Channel Catfish | — | 10 | Year-round | Same as open |
| Black Crappie | — | 20 | Year-round | Same as open |
| White Crappie | — | 20 | Year-round | Same as open |
| Bluegill | — | 20 | Year-round | Same as open |
| Yellow Perch | — | 20 | Year-round | Same as open |
| Tiger Muskie | 36" min | 1 | Year-round | Same as open |
| Northern Pike | — | — | Year-round | Same as open |
Official rules: Colorado — Colorado Parks & Wildlife