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Colorado fly fishing gear checklist

Gear & Flies

Colorado fly fishing gear checklist

Everything worth having in the car and on your person for a Colorado day, what each item is actually for, and what changes by season.

Any Colorado river, any season
13 min read

This is the list for a Colorado day on the water, with the reasoning attached. It is not a list of things to buy before you are allowed to go fishing: a licence, a rod, a leader and a handful of flies will get you on a river this weekend. What follows is what each item is actually for, so you can tell which ones matter for the day you have planned and which are somebody else's problem.

Colorado adds three things to a general checklist. Altitude, which makes sun a real consideration rather than a nicety. Cold water in most months, on the best-known water. And a lot of public access where the boundary between public and private is neither obvious nor forgiving, which turns a couple of planning items into genuine necessities.

Before you leave the house

Most failed trips are not equipment failures. They are a licence nobody bought, a river running four times its normal volume, a road that was closed, or a bank that turned out to be private. All of that is solvable in about ten minutes from home, and none of it is fixable after a two-hour drive.

A current fishing licence. Required, cheap, and sold by Colorado Parks and Wildlife.
The regulations for your specific stretch. Not just the statewide rules. Several Colorado sections carry their own tackle restrictions, and some are catch and release where the water above and below is not.
The gauge for your actual reach. Read over the last week rather than today alone, since direction matters more than the figure. How to read a gauge covers what the numbers mean.
Current closures. Especially in midsummer, when heat-related voluntary and mandatory closures appear at short notice.
Where you are allowed to stand. Access is the single most worthwhile thing to confirm. Our river guides describe the access character of each water and point at the managing agency.

The rod and reel

Most Colorado rivers, most of the year

One nine-foot five-weight, four-piece

Why it fits: It is the honest compromise, which is exactly what you want while you find out what you actually enjoy fishing. Long enough to control a drift, short enough for most stretches, enough backbone to throw a weighted nymph rig in wind, light enough not to make a modest fish boring.
What to look for: Four pieces so it travels, a mid-price blank from a maker with a real warranty and repair service, and a tip soft enough to protect fine tippet if you expect to fish clear tailwater.
Alternatives: A four-weight if you mostly fish small cold tailwaters and dislike overpowering them. A six-weight if your home water is a big freestone, or if wind is a constant rather than an occasional problem.
Budget considerations: This is the decision people agonise over and it is genuinely the least consequential in a first year, provided you avoid the very bottom of the market. A mid-price rod and a quality line beats a flagship rod and a cheap one.
When you do not need this: You do not need a second rod until you can name what the first one will not do. Two mediocre outfits are worth less than one that suits your water.

Where the money actually goes

A reel, and a good line on it

Why it fits: On Colorado trout water a reel is mostly a line holder with a drag you will rarely depend on, because most fish are played off the rod and with your hands. The line, by contrast, is what loads the rod and does more for your cast than the blank does.
What to look for: A reel that balances the rod, holds the line and has a drag smooth enough not to jerk when a good fish does run. Then a quality weight-forward floating line matched to the rod.
Alternatives: A spare spool or a second cheap reel is a reasonable way to carry a sinking line later, if you end up fishing big water from a boat.
Budget considerations: The largest saving available in a first setup is here. Sealed drags and machined frames are lovely and are solving problems Colorado trout will not give you. Move that money to the line, the boots and the glasses.
When you do not need this: Replace a line when it cracks or stops floating rather than persevering. A tired line makes casting feel like your fault, which is a bad reason to buy a new rod.

Leaders and tippet

The cheapest part of the setup, the part that decides whether your fly drifts honestly, and the part most likely to be several seasons old. Carry a few tapered leaders and a small range of tippet sizes: fluorocarbon for subsurface work because it sinks and is less visible, nylon for dry flies because it floats and is more supple.

One genuine trap: tippet degrades with UV and age. The spool that has lived on your pack for three seasons is weaker than its printed rating, and it will break on the best fish of the year. More on this under leaders and tippet.

Flies and fly boxes

A small selection chosen for the water you are going to beats a large assortment chosen for fly fishing in general. The assortment is where a lot of first-season money goes and most of it is wasted, because a general selection is by definition not chosen for the river you are standing in.

What to carry, season by season, is its own guide: the Colorado fly box. For the box itself, look for foam that still grips hooks and a size you will genuinely carry, and favour quantity in the patterns you rely on over variety in the ones you might.

Waders and boots

Any wading, any season

Boots with real grip

Why it fits: This is the one category where buying cheap has a physical consequence rather than a comfort one. Grip on wet rock is what stops you going into cold moving water, and cold moving water is the thing on this site most likely to actually hurt you.
What to look for: A sole suited to the substrate you fish, the option to add studs for slick rock, and room for the socks you will actually wear in the coldest month you fish. Fit does more for warm feet than insulation: tight boots make cold feet, every time.
Alternatives: In midsummer on smaller water, old trainers and shorts genuinely work. For most of the Colorado year they do not, because the water limits an unprotected day to minutes.
Budget considerations: Second only to the line as the place where money changes your day. Felt is restricted in some states as a biosecurity measure, so check the rules where you fish before choosing a sole.
When you do not need this: You do not need separate boots for summer and winter. One pair with room for thick socks covers both.

For the waders themselves: breathable stockingfoot, with a warranty and a repair service. All waders leak eventually, and the meaningful difference between makers is how easily a pair gets fixed. Wear the belt, and wear it tight. See waders and boots.

Polarised glasses

Eye protection first. A weighted hook travelling past your head on a windy day is a real risk and glasses are the cheapest insurance on this page. Then the actual fish-finding benefit: polarised lenses cut surface glare and let you read structure, depth changes and sometimes the fish themselves.

At Colorado altitude, UV protection stops being a comfort feature. This is genuinely one of the highest-value items in the whole list.

Layers

Standing still in cold water is a different thermal problem from hiking, and it is what decides how long your day lasts. The specific failure is not being cold in general: it is losing dexterity in your hands, at which point you cannot tie a small fly onto fine tippet and the day is effectively over.

Layers that insulate while compressed. Waders press everything flat against your legs and destroy the loft most insulation relies on. Fleece and synthetics handle this; puffy insulation does not.
Nothing cotton. It holds water against you and stops insulating when damp.
A wind layer. Wind is what turns a manageable cold day into an unmanageable one, and a shell costs almost nothing to carry.
A sun layer in summer. A long-sleeved shirt and a hat beat sunscreen you will forget to reapply.

Winter has enough of its own answers to need a separate guide: cold weather fly fishing gear.

Pack

Think about what a pack costs you to carry rather than what it lets you carry. Anything that makes you reluctant to walk another half mile upstream is working against you, and that half mile is frequently where the fish nobody has cast to are.

A small sling or chest pack covers a first season honestly. A vest with thirty compartments mostly changes how long it takes to find things.

Tools

Nippers for cutting tippet. Cheap ones work. Your teeth are not a long-term plan.
Forceps for removing hooks quickly, which matters more if you release fish.
Floatant and a drying agent if you fish dries. A dry fly that sinks is not a dry fly.
A stream thermometer. Tiny, cheap, and it tells you where in the river to look. Worth more than another dozen flies.
Magnification of some kind. Tying size 20 flies onto fine tippet in flat winter light is a young person's game, and a clip-on magnifier extends your career.
A rubber-mesh net if you release fish. It shortens the fight and does far less damage than knotted nylon.

Safety

Not an afterthought in Colorado, and the items here are the ones worth being firm about.

A wading staff on pushy water. A third point of contact changes what you can stand up in, and it lets you probe depth before committing your weight.
A tight wading belt. It limits how much water gets in if you go over.
A personal flotation device on big water at high flow. Unfashionable, and the correct choice on a river like the Arkansas in June.
Dry clothes in the car. Not fishing kit, just dry clothes. After an unplanned swim this stops being a comfort item.
Water and food beyond what you think you need, because you will be out longer than planned.
Someone who knows where you went, on remote water with no signal.

The honest rule that no equipment replaces: if you are not confident you can stand up in it, fish from the bank. Nothing on this page is a safety assessment of any river or of conditions on a given day.

What changes by season

Winter

Tailwaters, and the cold-weather answers. Hand management becomes the thing that decides the length of your day, ice in the guides becomes a recurring chore, and fish hold deeper and move less, so depth control matters more than fly choice.

Spring and runoff

Freestones go high, cold and brown for several weeks. Heavier tippet, more weight, bigger and brighter patterns, a bright indicator you can actually see, and a wading staff. The fish move to the edges, which is where you should be looking. See fishing a freestone through runoff.

Summer

Sun protection and heat become the planning problem. Water temperature is worth watching for the fish's sake as much as yours, and midsummer closures are a normal part of the Colorado season rather than an unusual event. High country opens up.

Autumn

Stable flows, fewer people, and cooling water. Layers come back, days get shorter than you plan for, and a headlamp in the pack stops being optional if you fish the last hour of light.

Where to go next

Pick the water first: the river guides say what each Colorado river is and which authority to check. If you are not sure which skills are worth working on before spending anything, the Skill Test is free and takes about five minutes. And the Colorado Playbook carries the month-by-month fly detail and researched flow guidance for fifteen rivers, with an edition date on it so you know how current it is.