Otter Lake Fishing Guide, Park County, Montana

• Overview

  Otter Lake lies in Park County, Montana. The bank is 9,619 feet above sea level. At about 73 acres, a day is enough to walk the shoreline properly. With about 1.6 miles of edge, you can try several depths in one session. Size puts it in the front rank of our Park County list. The town to know is Red Lodge, 26 miles out. Billings sits 78 miles out, and it is the nearest city worth the name. One jurisdiction covers this water end to end.

• Where to Fish on Otter Lake

  The records we hold are silent on depth, so plan to find it yourself. Read the surface for the wind lane, then fish the edge of it. Look for the band where the shallows give up and the bottom falls away. Reported across Park County: rainbow trout, brook trout, california golden trout, brown trout and black-spotted cutthroat trout. The county list is broader than any single water. Treat Otter Lake as a water to read rather than to cover.

• Seasonal Patterns

  August runs about 49°F on average, January about 14°F. Cold winters and warm summers give a wide working range. The lid usually sets by midwinter and gives way around early June. Open water usually runs from early June until about early November. Fishing peaks soon after break-up and again before the cold returns. Otter Lake fishes to that pattern most years.

• Tackle & Baits

  Nothing we hold confirms whether access is permitted. Records list it as a natural water body rather than an impoundment. Mapping is blank for access, so scout the approach before committing the car. Trout here take small spinners, spoons and, where fly water allows, a nymph or dry. Ask in the nearest town if you are unsure. Some stretches are reserved and marked as such on the ground. Triangle Lake sits 0.4 miles off and takes the overflow. Treat Otter Lake as unsettled until someone local tells you otherwise.