What Clear Creek Reservoir offers

Clear Creek Reservoir sits at 10,400 feet in the Mosquito Range west of Leadville, a high-altitude fishery that holds cutthroat trout and brook trout year-round. The water is cold and clear—which is where it gets its name—and the surrounding terrain is open tundra and scattered timber, so you can see weather coming and plan your day accordingly. The reservoir is small, roughly 30 acres at full pool, which means you can cover productive water in a half day and know the place well after a few visits.

Access is straightforward: the road in is passable by standard vehicle most of the year, though snow closes it from November through May depending on conditions. The shoreline is rocky and uneven, with deeper water on the north side and shallower flats on the south end. There is no developed boat launch, but anglers with small rafts or float tubes can hand-launch without difficulty. The lack of motorboats keeps the water quiet and the fish less pressured than reservoirs closer to Denver.

Key Takeaways

  • Clear Creek Reservoir holds cutthroat and brook trout at 10,400 feet elevation, with the north shore offering deeper water and the south end holding shallower flats.
  • The road is typically open from late May through October; snow closes access the rest of the year, so call ahead to confirm conditions.
  • No motorboats are allowed, making this a quiet water where fly fishing and spin casting are equally effective.
  • Cutthroat trout respond to small nymphs and dry flies in summer; brook trout are more aggressive and will take streamers and spinners throughout the season.

When to fish and what to expect

Summer is the main season, from late June through September, when the water is ice-free and the weather is most stable. July and August see the most consistent fishing, with water temperatures in the low 50s Fahrenheit. Cutthroat trout feed actively in the morning and evening, and you will find them cruising the shallows or holding near drop-offs. Brook trout are less predictable but often more willing to take a fly or lure, especially in the deeper water on the north side.

Early season—late May and June—can be excellent because the water is still cold and fish are hungry after winter, but the road may still have snow patches and the weather can turn fast. Fall fishing from September into early October is underrated; the crowds thin out and the fish feed heavily before the water cools further. Winter access is not practical for most anglers, though ice fishing is theoretically possible if you can reach the reservoir and the ice is thick enough.

Fly fishing techniques that work

Cutthroat trout at Clear Creek respond well to small nymphs—size 14 to 18 pheasant tails, hare's ears, and midge pupae work consistently. Fish the nymphs on a dead drift near the bottom in deeper water, or use a small split shot to get down quickly. In the shallows, especially in the evening, dry flies like Adams and small caddis patterns will draw rises, though the window is often short and the fish can be selective.

Streamers are effective for brook trout and larger cutthroat, particularly in the deeper water on the north shore. A small black or olive woolly bugger stripped slowly will often produce strikes. Because the reservoir is small and the water is clear, use a longer leader—9 to 12 feet—and approach quietly. Wade slowly and keep your shadow off the water; at this elevation and in this clear water, fish spook easily.

Spin fishing and other methods

If you prefer spinning gear, small spinners in sizes 0 and 1 work well, especially in silver or gold. Cast near the drop-offs and retrieve steadily; brook trout will often hit on the fall. Spoons are less effective here than at lower-elevation reservoirs, but a small gold spoon cast and retrieved slowly can produce. Worms under a bobber are a reliable option if you are not committed to fly fishing, and they work particularly well in the deeper water where the bottom is rocky and uneven.

The key across all methods is to fish slowly and deliberately. This is not a water where you cover a lot of ground quickly. Instead, pick a section of shoreline or a depth zone and work it thoroughly. The fish are there; they are just not aggressive unless conditions are right.

Getting there and what to bring

From Leadville, take US 24 south toward Buena Vista for about 8 miles, then turn west on County Road 12 (also called the Halfmoon Creek Road). Follow it for roughly 5 miles to the reservoir. The road is dirt and rocky but passable by standard sedan in dry conditions; after rain or snow, a high-clearance vehicle is safer. There is no fee to fish, and no permit is required beyond a valid Colorado fishing license.

Bring layers—the weather at 10,400 feet changes fast, and afternoon thunderstorms are common in July and August. A hat and sunscreen are essential; the sun reflects off the water and the rock, and you will burn quickly. Bring more water than you think you need; there is no reliable source at the reservoir. If you are wading, felt-soled boots or wading shoes with good grip are important because the bottom is rocky and slippery. A small backpack with your fly box, leader material, and a headlamp is all you need for a half-day trip.

Regulations and catch limits

Colorado Parks and Wildlife manages Clear Creek Reservoir under the statewide fishing regulations. The current limit is 10 trout per day, with no minimum size restriction, though most anglers practice catch-and-release on cutthroat trout because they are the more delicate species. Brook trout are more robust and are fair game to keep if you want to eat them. Check the current Colorado Parks and Wildlife fishing guide before you go, as regulations can change year to year.

The reservoir is in a wilderness-adjacent area, so respect the landscape. Pack out everything you pack in, and do not leave line or leaders behind. The fish here are not heavily pressured, and that is worth protecting.

Frequently Asked Questions

Can I launch a boat or float tube at Clear Creek Reservoir?

Yes, but there is no developed launch. You can hand-launch a small raft, canoe, or float tube from the south shore. Motorboats are not allowed. The water is cold and the weather can change fast, so wear a life jacket and do not venture far from shore unless you are experienced in mountain water conditions.

What is the best time of day to fish?

Early morning and evening are most productive, especially for cutthroat trout. The sun is lower, the water is calmer, and the fish are more active. Midday can be slow, but on cloudy days or when the wind picks up, fish will feed throughout the day.

Do I need a guide to fish Clear Creek Reservoir?

No. The reservoir is small enough to explore on your own, and the fish are not particularly difficult to locate. If you are new to high-altitude fishing or fly fishing, a guide can accelerate your learning, but it is not necessary.

What happens if the road is closed?

Call the Leadville Ranger District at the San Isabel National Forest office before you drive. They can tell you whether the road is passable. If it is closed, you will need to wait until conditions improve or find an alternative fishery at lower elevation.

Are there other fish species in the reservoir besides trout?

No. Clear Creek Reservoir holds only cutthroat and brook trout. There are no pike, perch, or other species, so your focus can stay on trout techniques and patterns.