Fishing Regulations in Colorado: Know Your Limits

Colorado’s scenic lakes, rivers, and reservoirs provide a wealth of fishing opportunities. However, to preserve fish populations and ensure sustainability, the Colorado Parks and Wildlife (CPW) enforces strict bag and possession limits. Anglers need to understand these rules to avoid penalties and help maintain the health of aquatic ecosystems.

Statewide Bag and Possession Limits

The bag limit refers to the number of fish an angler can catch and keep in a single day, while the possession limit applies to the total number of fish an individual can have in their possession, including stored fish. Released fish do not count toward these limits.

For many species, the statewide possession limit is twice the daily bag limit, meaning you can store up to two days’ worth of your legal catch. However, these rules vary by species, waterbody, and location, so anglers need to be aware of the specific guidelines that apply to them.

Trout and Kokanee Salmon Limits

Trout species are popular targets for anglers across Colorado, with opportunities to catch rainbow, brown, brook, and cutthroat trout, as well as lake trout (mackinaw).

• Daily bag limit: 4 trout of any species
• Possession limit: 8 trout
• Kokanee salmon: 10 fish daily, 10 in possession

Certain waters have special rules. For example, in some high alpine lakes or Gold Medal waters (known for producing large trout), bag limits may be lower, or catch-and-release rules may apply.

Walleye and Saugeye Limits

Walleye and saugeye (a hybrid of walleye and sauger) are prized for their fight and flavor. Some reservoirs, such as Cherry Creek and Boyd Lake, have unique regulations to manage these species effectively.

• Statewide daily bag limit: 5 fish, only 1 of which can exceed 21 inches
• Possession limit: 10 fish

In specific locations, slot limits or catch-and-release rules may be in place to protect breeding populations, so checking local rules before fishing is essential.

Bass: Largemouth and Smallmouth

Bass fishing is prevalent in many of Colorado’s warm-water lakes.

• Daily bag limit: 5 fish in aggregate (combined largemouth and smallmouth)
• Possession limit: 10 fish

Some water bodies may have restrictions regarding the size of bass that can be kept to promote healthy breeding populations, especially during spawning season.

Catfish

Channel catfish thrive in many of the state’s reservoirs and rivers. They are often caught at night and are known for their size and strength.

• Daily bag limit: 10 fish
• Possession limit: 20 fish

Different bag limits may apply to flathead catfish, depending on the waterbody.

Crappie, Bluegill, and Sunfish

These panfish species offer fun fishing for families and are often caught in large numbers. They are typically subject to more generous limits.

• Daily bag limit: 20 fish of any combination
• Possession limit: 40 fish

While these fish are plentiful, keeping within the prescribed limits helps maintain balanced ecosystems, especially in smaller lakes.

Northern Pike and Tiger Muskie

Northern pike are considered invasive in many of Colorado’s waters, where they pose a threat to native species. Therefore, limits for pike are often more lenient.

• Northern pike: No bag or possession limits in many waters
• Tiger muskie: 1 fish per day, must be at least 36 inches

In some cases, anglers are encouraged to harvest as many pike as possible to protect trout and other native species.

Special Waters with Unique Regulations

Colorado designates certain waters with stricter fishing rules to maintain quality angling experiences and protect fish populations. These include Gold Medal waters, which offer opportunities to catch large trout, and Wildlife Areas, where catch-and-release policies may apply. Bag limits in these areas often differ from the general statewide rules.

Always check the CPW website or the fishing regulation booklet for the latest rules specific to the area you plan to fish. Fishing at state parks, wildlife areas, or federal lands may also have additional guidelines to follow.

Reporting and Legal Compliance

Anglers are responsible for knowing the regulations for the specific waterbody they are fishing in. Some species, like kokanee salmon during spawning runs, may require anglers to participate in regulated harvests or report their catch. The CPW also encourages anglers to practice ethical fishing by releasing fish they do not intend to consume.

In addition to bag and possession limits, anglers should carry a valid Colorado fishing license and follow seasonal closures or restrictions that may apply to certain fish species or locations. Violating fishing regulations can result in hefty fines or the suspension of fishing privileges.

Tips for Staying Within the Limits

• Plan: Research the bag and possession limits for the waterbody you are visiting.
• Measure accurately: Use a fish ruler to ensure that fish meet size requirements.
• Keep count: Track the number of fish you have kept during the day.
• Use proper storage: If you plan to keep fish for later consumption, ensure they are stored in compliance with possession limits.
• Practice catch-and-release: When you reach your limit, release additional fish safely to reduce waste and promote sustainability.

Understanding the fishing regulations in Colorado ensures a responsible and enjoyable experience for all anglers. While it can be tempting to keep a big catch, following the established bag and possession limits helps preserve fish populations for future generations. By staying informed and abiding by the rules, anglers contribute to the sustainability of Colorado’s aquatic ecosystems and protect the sport they love.

Always refer to the most current CPW regulations before heading out, as rules may change to reflect population trends or environmental conditions. With proper preparation, anglers can enjoy Colorado’s fishing opportunities while doing their part to conserve this natural resource.