The Middle Colorado River offers a variety of fly fishing opportunities, especially in the stretch between Glenwood Springs and Rifle, Colorado. Known for its larger fish and slower-moving waters, this section is ideal for anglers seeking bigger brown and rainbow trout. With numerous access points, including Two Rivers Park and Grizzly Creek, you can easily wade or float through prime trout territory.
The Lower Colorado River near Grand Junction is in prime condition this October, with crisp fall weather bringing excellent fishing opportunities. Trout are actively feeding as they prepare for the winter months, with late morning to mid-afternoon being the peak times. The clear water makes it ideal for sight fishing, and the cooler temperatures have fish responding well to both nymphs and streamers. For those willing to brave a chillier morning, the reward is often a day filled with aggressive takes and beautiful autumn scenery along the banks.
Anglers targeting deeper pools and riffles will have success, particularly with nymph and streamer setups. The fish are showing a preference for mid-sized patterns, with Blue Wing Olives (BWOs) and Pheasant Tails doing the trick. Whether you’re a fan of delicate dry presentations or stripping streamers, the Lower Colorado has something for everyone this season.
Colorado Division of Natural Resources River Flow Station Report
Month | Primary Hatches | Effective Patterns |
---|---|---|
March | Midges, Baetis (BWO) | Zebra Midges (#20-24), Blue Wing Olive (#18-22) |
April | Midges, Baetis, Caddis | Black Beauty (#18-22), Elk Hair Caddis (#16-18) |
May | Baetis, Caddis, Stoneflies | Blue Wing Olive (#18-20), Pat’s Rubber Legs (#10-12) |
June | Caddis, PMDs | Elk Hair Caddis (#16), PMD Comparadun (#16-18) |
July | Caddis, Yellow Sallies | Yellow Sally (#14-16), PMD Emerger (#18-20) |
August | Tricos, Caddis, Terrestrials | Trico Spinner (#22-24), Parachute Hopper (#10-12) |
September | BWOs, Midges, Caddis | BWO Parachute (#18-22), Black Ant (#18-20) |
October | BWOs, Midges | Blue Wing Olive (#18-22), Zebra Midge (#20-24) |
November | Midges, BWOs | BWO Emerger (#18-22), Black Beauty (#20-24) |
December - February | Midges | Griffith’s Gnat (#20-24), WD-40 (#18-22) |
Seasonal Tip
Fall trout are actively feeding in preparation for winter. Stick with mid-sized patterns for success, especially in slower pockets and along banks.
Dry Fly
Use Blue Wing Olive patterns in the late morning and early afternoon, when BWOs are hatching. Focus on calmer water and pocket water where trout rise to feed.
Nymphing
Set up a two-fly nymph rig with a Pheasant Tail followed by a small midge. Target seams, riffles, and deeper pools for best results.
Streamer Fishing
Slow strips with a Woolly Bugger or other small streamers work well in the morning and late afternoon. Try fishing near structure and in deeper pockets to bring out larger fish.
Ensure you have a valid Colorado fishing license, as this area is regularly monitored. Some parts of the Lower Colorado River pass through private property, so stick to public access points to avoid trespassing. Follow all posted regulations, and consider using barbless hooks and practicing catch-and-release where possible to preserve fish health and support sustainable fishing.