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​​​​​​​​​​​​Ice fishermenWelcome to great Colorado fishing. The Park hosts fishing tournaments year-round. Check the ca​lendar​ for up-coming fishing tournaments. Cabela's Colorado Classic Ice fishing tournaments are monthly (Jan, Feb & Mar) through the winter; the spring No Name Tournament is usually the weekend after Mother's Day weekend and the fall pike event is usually the weekend after Labor Day weekend.​

Restricted Fishing Areas

All fishing is prohibited in the restricted area near the dam on the east end of the reservoir. This area is marked by a closure buoy line that stretches across the lake at that point.

Fly Fisherman with Trophy Brown TroutAll fishing is flies and lures only and is catch and release within 100 feet of the mouth of the inlet. This area is clearly marked with a set of buoys positioned in the shape of a square around the mouth of the river.

Fishing from any island or from any dock is prohibited. Fishing is permitted everywhere else on the reservoir. Check our fishing closure map for full details of these areas.

Fishing Restrictions at Eleven Mile Reservoir Include:

  • Fisherman with Trophy PikeTrout daily bag/possession limit is four fish, of which no more than two can be 16 inches or longer.

  • Northern pike has NO bag/possession limit.

  • Kokanee salmon daily bag/possession limit is 10 fish at all times of the year.

  • Ice-fishing shelters must be portable.

  • The use of live minnows is strictly prohibited.

  • Fishing guides and outfitters who use the park for commercially guided fishing or recreation activities are required to purchase a special-use permit. Please contact the park office for more details at (719) 748-3401.

  • Please check the current Colorado Parks and Wildlife Fishing Regulations brochure for a complete list of all fishing regulations.

Eleven Mile's Kokanee Population and Gill Lice

As many of Eleven Mile's salmon anglers have been aware, the salmon population has declined since 2006.

Kokanee Snagging FishermanThe DOW announced on Dec. 20, 2008 in a press release that the reason for the die-off can be laid at the hands of a small parasite known as gill lice (Salmincola sp.). The gill lice are responsible for a sizeable die-off of all age classes of salmon in Eleven Mile Reservoir.

Gill lice are not harmful to humans provided that fish are prepared properly (145 degree heat or until the flesh is opaque and separates easily with a fork).

Trout have a higher resistance to the parasite and no loss of any of Eleven Mile's trout species has been observed. The salmon population has made slow gains since 2006, but continues to remain far below those levels.


The threat of Aquatic Invasive Species (AIS) is a very real threat that affects everybody. AIS species can destroy facilities, ecosystems and recreational equipment alike. It is in nobodies interest to allow their introduction into a "clean" reservoir. 

Recently, Colorado Parks and Wildlife biologists confirmed the presence of two invasive species, New Zealand mud snails (NZMS) and a plant called Eurasian water milfoil (EWM) in both Eleven Mile and Spinney Mountain Reservoirs. NZMS primarily feed on algae and aquatic plants, and can crowd out other desired fish and invertebrate species. EWM is an aggressive aquatic plant that out competes native plants and can form large strands on the surface of the water, which can entangle motors and degrade the quality of recreational boating opportunities. 

Colorado Parks and Wildlife require a boat inspection on all trailered vessels that are intending to either be launched on or removed from either reservoir. Belly boats, canoes and kayaks without motors are still exempted if they do not arrive on a trailer. But, we need the help of every boater and fisherman that uses the reservoir. It is critical for the boating and fishing public to fully cooperate in order to protect boating and fishing opportunities not only at Eleven Mile Reservoir, but all water impoundments within Colorado and prevent the spread of these damaging organisms. 

Mandatory inspections of all non-exempt vessels will be conducted at either boat ramp (when open for use) and must be completed satisfactorily prior to launching on the reservoir or exiting from the boat ramp parking lot. Any vessel, float tube or belly boat that is found to be contaminated will be refused admittance to the reservoir until that vessel, float tube or belly boat is satisfactorily decontaminated. Owner's of any vessel, float tube or belly boat found to be contaminated after being removed from Eleven Mile Reservoir will be assisted by parks and wildlife staff in ensuring that the vessel, float tube or belly boat is "clean" prior to exiting the boat ramp parking lot. It is illegal in Colorado to knowingly transport ANS. 

Full decontamination can be done by park staff through the boating season at the Eleven Mile Shop by appointment only between the hours of 7 AM until 5 PM daily. Owners should be aware that an inspection at Eleven Mile Reservoir will be required every time the vessel enters or leaves the ramp area for launching or loading unless the vessel has an untampered inspection strap attached to its bow and affixing it to the trailer that was placed upon it at Eleven Mile State Park when entering or exiting the ramp lot. ​

EFFECTIVE April 01st, 2017: The North Shore Boat Ramp will be opened to all use for the spring/summer season at the start of business on this date. 

EFFECTIVE April 01st, 2017: The lake will be opened to all boating for the summer season at start of business on this date. The North Shore ANS Inspection station will also be opened on this date.​

Effective May 26th, 2017: The South Boat Ramp and ANS Inspection Station at Witcher's Cove will open for the season at the start of business on May 26th, 2017. The Witchers Cove boat ramp and ANS Inspection Station will only be open on weekends (Friday, Saturday, Sunday, and holiday Mondays). Boats needing to launch during other times will need to use the North Boat Ramp area. Launching a boat onto the reservoir or removing a boat from the boat ramp area is prohibited without an inspection. Both the reservoir and boat ramp are closed to boating 1/2 hour after sunset to 1/2 hour before sunrise. We ask that you arrive at the inspection station with your vessel clean, drained and dry. Vessels that arrive in a dirty condition will not be inspected and will not be allowed to launch.​​

How Can You Help?

Woman with prize winning pikeBefore leaving any lake or other waterway, fishermen and boaters should:

  • CLEAN the hull of your vessel, belly boat or float tube thoroughly.
  • DRAIN all water from the boat, including live wells, bait wells and ballast tanks.
  • DRY the vessel, fishing gear and equipment.
  • INSPECT all exposed surfaces.
  • REMOVE all plant and animal material.

Additional contact information for Zebra Mussels policies and strategies:

  • Boating Policies at a given park – Call the individual park office.
  • State Parks regulations related to Zebra Mussels – Call Heather Dugan 303-791-1957.
  • Overall parks Zebra Mussel strategy – Call Elizabeth Brown 303-291-7362.
  • Statewide Zebra Mussel strategy – Call Greg Gerlich 303-291-7360.

Child with troutSee the homepage​ for current weather conditions. Tackle, guide services and boat rentals are available at 11 Mile Marina.​