Yamcolo Reservoir Fishing Guide, Routt County, Colorado

• Overview

  Yamcolo Reservoir is a Routt County water, in Colorado. Land around it is mixed forest. At about 184 acres, a day is enough to walk the shoreline properly. With about 2.7 miles of edge, you can try several depths in one session. On our Routt County list it sits near the top for size. Gypsum sits 29 miles from the bank. The big place round here is Boulder, 94 miles distant. It lies deep inside the county rather than near an edge.

• Where to Fish on Yamcolo Reservoir

  No depth figure appears in our records, so the bank has to tell you. Levels move with the draw rather than the rain on water like this. Built water gives depth close in, which suits a bank angler. Survey and observation records for Routt County include brook trout, cutthroat trout, rainbow trout, mountain whitefish and mountain sucker. The list covers the county rather than this water alone, so treat it as a guide. The shape of Yamcolo Reservoir decides where the fish sit.

• Seasonal Patterns

  The seasonal spread runs 17°F to 53°F. Winter puts a hard lid on this one. The freeze runs deep into the year, with break-up near late May. The lid tends to go about late May and return around mid November. The weeks after the thaw and the ones before the freeze are the strongest. Plan any trip to Yamcolo Reservoir around it.

• Tackle & Baits

  Ownership and access are not documented in what we hold. A campsite lies half a mile away for anyone staying over. Public toilets are recorded roughly half a mile off. For the trout, small spinners and a box of nymphs cover both approaches. Gates get locked out of season on water like this. Some water is controlled locally without a sign saying so. Rams Horn Lake sits 0.5 miles off and takes the overflow. Treat Yamcolo Reservoir as unsettled until someone local tells you otherwise.