Chatfield Reservoir & Chatfield State Park Fishing Regulations
Colorado · 2026 size limits, bag limits, and seasons
Chatfield Reservoir & Chatfield State Park is a reservoir, Colorado. It has its own fishing regulations for 3 species, including Largemouth Bass, Smallmouth Bass, and Walleye, set separately for 3 sections of the reservoir. These rules replace Colorado's statewide limits on this water.
Fish with special rules on Chatfield Reservoir & Chatfield State Park
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Chatfield Reservoir & Chatfield State Park limits by species (2026)
Within Chatfield State Park, including the South Platte River and all ponds within the park boundary
| Species | Size limit | Daily bag | Season |
|---|---|---|---|
 Largemouth Bass | 15" min | – | Year-round |
 Smallmouth Bass | 15" min | – | Year-round |
 WalleyeOnly 1 walleye longer than 21 inches may be taken per day. | 18" min | 3 | Year-round |
From dam and within 100 ft. of dam or walleye spawning nets
| Species | Size limit | Daily bag | Season |
|---|---|---|---|
| All Fish Species | – | – | Mar 1 – Apr 15 · Closed |
Ponds in dog off-leash area
| Species | Size limit | Daily bag | Season |
|---|---|---|---|
| All Fish Species | – | – | Year-round · Closed |
– means no limit is listed for this water. Rules not shown here follow Colorado's statewide regulations.
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Chatfield Reservoir & Chatfield State Park fishing: common questions
What fish have special regulations on Chatfield Reservoir & Chatfield State Park?
3 species have rules specific to Chatfield Reservoir & Chatfield State Park: Largemouth Bass, Smallmouth Bass, and Walleye.
What is the largemouth bass limit on Chatfield Reservoir & Chatfield State Park?
Largemouth Bass must be at least 15" to keep on Chatfield Reservoir & Chatfield State Park (within Chatfield State Park, including the South Platte River and all ponds within the park boundary).
What is the smallmouth bass limit on Chatfield Reservoir & Chatfield State Park?
Smallmouth Bass must be at least 15" to keep on Chatfield Reservoir & Chatfield State Park (within Chatfield State Park, including the South Platte River and all ponds within the park boundary).
What is the walleye limit on Chatfield Reservoir & Chatfield State Park?
Walleye must be at least 18" to keep on Chatfield Reservoir & Chatfield State Park (within Chatfield State Park, including the South Platte River and all ponds within the park boundary), and the daily bag limit is 3.
Do Colorado statewide fishing rules apply on Chatfield Reservoir & Chatfield State Park?
Where Chatfield Reservoir & Chatfield State Park has its own rule for a species, that rule replaces the statewide limit. For species not listed on this page, Colorado's statewide regulations apply. Regulations are set by the Colorado Parks and Wildlife; confirm with the official 2026 regulations before keeping a fish.
Other Colorado waters with special regulations
- South Platte River
- Yampa River
- Colorado River
- White River
- Poudre River · Larimer
- Gunnison River
- Blue River · Grand, Summit
- Roaring Fork River
- Arkansas River · Chaffee , Lake , Fremont , Pueblo
- Animas River · La Plata
- Eagle River · Eagle
- Taylor River
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