Fishing Foster Reservoir in Park County, Wyoming

• Overview

  Foster Reservoir falls in Park County, part of Wyoming. The setting is rolling bush. With some 35 acres of water, there is room for a boat but no need of one. Supplies mean a trip to Cody, 18 miles off. The nearest city of size is Billings, 109 miles away. Rules here are straightforward: one county, one set of rules. The water is easy to walk round in a long session.

• Where to Fish on Foster Reservoir

  Depth went unrecorded, which puts the reading back on you. The arms fish better than the open middle whenever the water is up. Rip-rap along the wall holds fish that the open bank never does. Public occurrence data for Park County names brook trout, rainbow trout, brown trout and cutthroat trout. Records at this level tell you what is in the area. The shape of Foster Reservoir rewards a slow walk along one bank.

• Seasonal Patterns

  The seasonal spread runs 20°F to 53°F. Winter closes the water for a while, and the reopening is worth catching. The freeze runs deep into the year, with break-up near mid May. Going by climate averages, expect open water from about mid May until roughly mid November. Late spring and early autumn carry the year between them. At Foster Reservoir the season follows that pattern closely.

• Tackle & Baits

  Nothing we hold confirms whether access is permitted. No launch point is recorded nearby, so this is a bank water unless you carry a boat in. For the trout, small spinners and a box of nymphs cover both approaches. Sort the permit out before you load the car. Access can change hands, so last year's answer may not hold. Coe Enlargement Reservoir at 3.8 miles is the sensible second choice. Where Foster Reservoir is concerned, a local answer beats a written one.