Base Line Reservoir near Superior: Fishing Spots, Seasons and Access

• Overview

  Base Line Reservoir belongs to Boulder County, Colorado. The country round it is farm and woodlot from end to end. At some 261 acres it is far too large to cover on foot in a day. About 2.6 miles of bank, so nothing stays unexplored for long. It ranks high for size among our Boulder County listings. Nearest town is Superior, 3.6 miles off. Boulder sits 3.7 miles out, and it is the nearest city worth the name. Rules here are straightforward: one county, one set of rules.

• Where to Fish on Base Line Reservoir

  There is no published depth for this one, so start shallow and work out. Levels move with the draw rather than the rain on water like this. Standing timber shows when the level drops, and fish sit against it. Records held for Boulder County cover black-spotted cutthroat trout, brook trout and brown trout. What holds for the county may not hold for this water. Base Line Reservoir gives up its fish to patience rather than distance.

• Seasonal Patterns

  Climate records put July near 71°F and January near 31°F. Ice comes and goes from one year to the next. Hard water here is never dependable, so check for yourself before stepping out. The hot months push the fishing to dawn and dusk. Anyone fishing Base Line Reservoir regularly works to that calendar.

• Tackle & Baits

  Public data does not answer the access question here. Expect a half a mile walk in from where the car goes. For the trout, small spinners and a box of nymphs cover both approaches. Check whether a boat is allowed before you tow one. Night access is frequently treated as a separate matter. Failing this one, try Hillcrest Reservoir, 1.6 miles away. What applies at Base Line Reservoir may have changed since it was mapped.