Lake Marion in Big Horn County: How and When to Fish It

• Overview

  This water sits in Big Horn County, Wyoming. The surface lies 10,036 feet up. Small at around 13 acres: two anglers spread out cover most of it. Nearest place of any size is Buffalo, 25 miles away. Billings is the closest city, 118 miles away. Other water within reach: Mistymoon Lake 0.6 miles away, Lake Helen a touch under 0.7 miles, Fortress Lakes 0.9 miles away, Gunboat Lake a touch under 1.1 miles and Florence Lake 1.9 miles away. No border sits close enough to matter.

• Where to Fish on Lake Marion

  No figure exists for depth, so let the water show you. Read the surface for the wind lane, then fish the edge of it. Weed, then depth: that is the order to fish a water of this kind. Fish documented in Big Horn County include brook trout, rainbow trout, brown trout, white sucker and common carp. The county list is broader than any single water. Lake Marion responds to conditions more than to tactics.

• Seasonal Patterns

  The range across the year is 12°F to 48°F. Winter puts a hard lid on this one. Firm cover through the cold months, then open water from mid June. Ice usually gives way near mid June, and forms again about late October. Fishing peaks soon after break-up and again before the cold returns. On Lake Marion the same rules apply, with local timing.

• Tackle & Baits

  Our records carry no access rule either way. Formal access is not mapped, so the last stretch is likely on foot. For the bass here, soft plastics worked slow along cover and a spinnerbait for searching do most of the work. Check whether a boat is allowed before you tow one. Barbless rules turn up on managed water more often than not. Should this one be busy, Mistymoon Lake is 0.6 miles off. For Lake Marion in particular, ask before you travel.