Fishing at Bellmire Reservoir, Boulder County, Colorado

• Overview

  Colorado holds Bellmire Reservoir, in Boulder County. The surroundings are mixed woodland. Small at around 6 acres: two anglers spread out cover most of it. Berthoud lies 5.3 miles from the water. Boulder sits 17 miles out, and it is the nearest city worth the name. This one sits near enough to a boundary to be worth checking. It sits far enough from the road to feel away from things.

• Where to Fish on Bellmire Reservoir

  No depth figure appears in our records, so the bank has to tell you. Draw-down through summer strips the margins, so follow the water out. Look for where the old bank line still shows under the surface. Fish documented in Boulder County include black-spotted cutthroat trout, brook trout, brown trout, bluegill and rainbow trout. It is the county picture; the agency list is water-specific. On Bellmire Reservoir that means starting tight and working out.

• Seasonal Patterns

  The warmest month averages 72°F, the coldest about 28°F. The year turns gently, without extremes at either end. It is not guaranteed even in a cold spell, so check yourself. Late winter often fishes better here than midsummer does. Expect Bellmire Reservoir to follow that timing.

• Tackle & Baits

  Public sources are silent on who controls the bank. There is a mapped slipway roughly half a mile away. For the trout, small spinners and a box of nymphs cover both approaches. Ask in the nearest town if you are unsure. Rules for boats are stricter than rules for the bank in many places. For a change of water, Crystal Lake is 0.4 miles distant. Rules at Bellmire Reservoir are worth checking on the day.