Bureau of Reclamation reservoir

Lake Granby

Grand County, Colorado

Lake Granby is a large high-country reservoir in the Arapaho National Recreation Area near Grand Lake. It holds the most lake trout of any lake in Colorado, and they reproduce on their own.

Air temp in Grand Lake, CO Loading current temperature…

Map data © OpenStreetMap contributors.

Current air temperature at Lake Granby (National Weather Service) ↗

Surface area7,250 acres

Max depth220 ft

Shoreline40 mi

Boat motorsCheck local rules

Species

Fishery rating out of 5.

Lake Trout●●●●●

Bag limit is 12 lake trout, with only one over 24 inches.

Kokanee●●●●○

Kokanee and other trout share a combined bag of 4.

Rainbow Trout●●●○○

Shorelines and inlets in cool months, deeper water in summer.

Brown Trout●●●○○

Low-light hours and cold water. Big fish on minnow baits.

When they bite

Month-by-month activity for each target species.

	J	F	M	A	M	J	J	A	S	O	N	D
Lake Trout
Kokanee
Rainbow Trout
Brown Trout

SlowFairGoodHot

Boat launches

5 launch sites. Fees and hours change, so confirm before you go.

Sunset Point Boating SitePublic
Forest Service single-lane ramp with courtesy dock, southwest shoreDirections ↗
Stillwater Boating SitePublic
Forest Service two-lane ramp on the west end; listed closed, check statusDirections ↗
Arapaho Bay CampgroundPublic
Forest Service campground with boating access, east endDirections ↗
Beacon Landing MarinaMarina
Private marina on the north shoreDirections ↗
More public accessPublic
See Colorado Parks & Wildlife or the lake manager's website for all ramps and feesDirections ↗

Size & creel limits

Special rules for this lake, confirmed from official state regulations. Minimum size and daily limit.

Species	Min size	Daily limit
Lake Trout Only one may be over 24 in; bag=possession; gaffs/tail snares prohibited (W-1 #235)	See Colorado rules book ↗	12 / day
Rainbow Trout Trout (except lake trout) and kokanee 4 combined; bag=possession	See Colorado rules book ↗	4 / day
Brown Trout Trout (except lake trout) and kokanee 4 combined; bag=possession	See Colorado rules book ↗	4 / day
Kokanee Combined with other trout (except lake trout); Columbine Bay above Twin Creek inlet closed Oct 15-Nov 30	See Colorado rules book ↗	4 / day

Other species in this lake: look up the limits at Colorado Parks and Wildlife ↗

Verified October 2026. Rules change, so confirm current limits with the Colorado Parks and Wildlife before you fish.

Bait & tackle nearby

Closest shops to the lake and its boat launches. Call ahead for live bait and hours.

Granby Bait and TackleNearby
383 E Agate Ave, Granby, CO(970) 393-7200 Directions ↗
Kirk's Fly ShopNearby
612 Grand Ave, Grand Lake, CO(970) 627-5021 Directions ↗

Search more bait shops near Lake Granby ↗

Local tips

Keep a limit of smaller lake trout to help the fishery.
Columbine Bay above the Twin Creek inlet is closed to fishing Oct. 15 to Nov. 30.
Gaffs and tail snares are not allowed here.

Angler reports

Water temp, what's biting, and anything else other anglers should know about Lake Granby.

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View on interactive map

Zoom and pan on a street, satellite or terrain map. Red pins are boat launches; blue pins are bait shops nearby.