Gross Reservoir, Boulder Colorado - Deep lake near Boulder that provides great fishing for trout and tiger muskie. Species in Gross Reservoir: Brook Trout, Brown Trout, Kokanee, Lake Trout, Rainbow Trout, Splake, Tiger Muskie, White Sucker
With the recent allowance of boating, Gross Reservoir has become a more frequent fishing destination for Front Range anglers. The lake provides fishing for trout, kokanee and tiger muskie. This lake is fast becoming known as a popular destination for muskie anglers. The lake is managed by Denver Water and no water contact sports are allowed. There is a day-use area with some sheltered picnic tables, hiking along the shore of Gross and camping in the Roosevelt National Forest along the western shoreline. No camping is allowed except in the national forest.
CDOW Relative Fish Frequency From Survey Data
Brook Trout 1.0%
Brown Trout 4.1%
Lake Trout 1.0%
Rainbow Trout 23.5%
Splake(Brook x Lake) 5.1%
Tiger Muskie 1.0%
LongnoseSucker 32.7%
White Sucker 31.6%
Getting there: Take Hwy 93 north from Golden to Hwy 72. Turn left (west) on Hwy 72 toward Pinecliffe to County Road 85. Follow County Road 85, which turns into western Gross Dam Road. It will take you to both the north and south access points. To reach the dam from Boulder, take Flagstaff Road west until it turns into eastern Gross Dam Road. Fees: No fee Boating: Non Motorized Hand-Launch. Boats must be single-hull construction, hand-propelled, and less than 18 feet long. Belly boats are not allowed. Boating is allowed from Memorial Day through September only.
7/27/2010 - Gross Reservoir - Fishing has been fair for Rainbows, 10-12 inches. The inlet area has still been the best producer of larger fish. Salmon eggs, worms, and Power Eggs are working well. Action has slowed for tiger muskies. The reservoir is open to boating beginning Memorial Day thru September 30. Only hand carried watercraft are permitted, no motors allowed (hand powered only). Gross requirement: A wearable floatation device (PFD) a whistle or air horn, your name, address, and phone number must be written inside the craft. Fishing is prohibited between 9 P.M. and 4 A.M. or as posted at the main entrance.
Conditions History
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