Lake Granby Fishing Regulations
Grand County, Colorado · 2026 size limits, bag limits, and seasons
Lake Granby is a lake in Grand County, Colorado. It has its own fishing regulations for 8 species, including Lake Trout, Brook Trout, Brown Trout, and Cutthroat Trout, set separately for 3 sections of the lake. These rules replace Colorado's statewide limits on this water.
Map of Lake Granby
Fish with special rules on Lake Granby
Tap a fish for identification tips, size records, and the best bait.
Lake Granby limits by species (2026)
Entire lake
| Species | Size limit | Daily bag | Season |
|---|---|---|---|
| All Fish Species | – | – | Always open |
 Brook Trout | – | 4 | Always open |
 Brown Trout | – | 4 | Always open |
 Cutthroat Trout | – | 4 | Always open |
 Golden Trout | – | 4 | Always open |
 Lake Trout | – | 4 | Always open |
| 24" min | 1 | Always open | |
| – | 12 | Always open | |
 Rainbow Trout | – | 4 | Always open |
 Sockeye Salmon | – | 4 | Always open |
 Steelhead | – | 4 | Always open |
Entire lake
| Species | Size limit | Daily bag | Season |
|---|---|---|---|
| Lake Trout12 lake trout limit, only 1 longer than 24 inches · Gaffs and tail snares prohibited · No size, bag, or possession limit for tiger muskie · Kokanee limit 4 (singly or in aggregate) · Portable ice fishing shelters only | – | 12 | Year-round |
In Columbine Bay from the inlet of Twin Creek upstream
| Species | Size limit | Daily bag | Season |
|---|---|---|---|
| All Fish Species | – | – | Oct 15 – Nov 30 · Closed |
– means no limit is listed for this water. Rules not shown here follow Colorado's statewide regulations.
Plan your Lake Granby trip
Lake Granby fishing: common questions
What fish have special regulations on Lake Granby?
8 species have rules specific to Lake Granby: Lake Trout, Brook Trout, Brown Trout, Cutthroat Trout, Golden Trout, Rainbow Trout, Sockeye Salmon, and Steelhead.
What is the lake trout limit on Lake Granby?
No size limit is listed for Lake Trout on Lake Granby (entire lake), and the daily bag limit is 4. Limits change during the year. Rules differ across 2 sections of the lake.
What is the brook trout limit on Lake Granby?
No size limit is listed for Brook Trout on Lake Granby (entire lake), and the daily bag limit is 4.
What is the brown trout limit on Lake Granby?
No size limit is listed for Brown Trout on Lake Granby (entire lake), and the daily bag limit is 4.
Do Colorado statewide fishing rules apply on Lake Granby?
Where Lake Granby 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
Take Lake Granby rules on the water
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