Kossler Lake Fishing near Boulder, Colorado

• Overview

  In Colorado, Kossler Lake falls inside Boulder County. The setting is mixed woodland. This is a pocket water of some 13 acres, and every part of it is reachable from the bank. The town to know is Boulder, 4.1 miles out. Boulder is the closest city, 4.3 miles away. A border sits close enough to be relevant to the paperwork. The shoreline gives more room than the map suggests.

• Where to Fish on Kossler Lake

  Without a survey to go on, judge depth from how the bank falls away. Rip-rap along the wall holds fish that the open bank never does. The arms fish better than the open middle whenever the water is up. Records held for Boulder County cover black-spotted cutthroat trout, brook trout, brown trout and bluegill. County data is a starting point rather than a guarantee. Kossler Lake repays a walk before the first cast.

• Seasonal Patterns

  The year swings from about 29°F in January to roughly 67°F in July. In milder years the surface never sets. It should never be assumed safe, whatever the month says. The hot months push the fishing to dawn and dusk. That is the shape of the year on Kossler Lake. Short days concentrate it into a narrow window.

• Tackle & Baits

  No public source sets out the position on this bank. Expect a half a mile walk in from where the car goes. Light line and small metal for the trout; a fly rod earns its place on calm evenings. Parking space is the usual limit rather than the bank itself. Keep proof of licence with you rather than in the car. If the gate is shut, Gross Reservoir at 3.4 miles is the nearest alternative. For Kossler Lake, the notice at the access point is the final word.