Sienna Lake Fishing Guide, Stillwater County, Montana

• Overview

  Sienna Lake is set in Stillwater County, Montana. The setting is mixed forest on every side. At 13 acres it is the sort of place you fish for an evening rather than a day. The nearest place of any size is Absarokee, 32 miles away. Beyond it, Red Lodge at 37 miles and Livingston at 39 miles. This one is safely inside the county line.

• Where to Fish on Sienna Lake

  We hold no survey for this water; read the slope of the shoreline instead. Read the surface for the wind lane, then fish the edge of it. This is a lake, so the margins and the first drop matter most. Across Stillwater County, recorded fish include rainbow trout, california golden trout and brown trout. The list covers the county rather than this water alone, so treat it as a guide. On Sienna Lake that means starting tight and working out.

• Seasonal Patterns

  The seasonal spread runs 18°F to 55°F. The season turns properly here, and fish follow it closely. The freeze runs deep into the year, with break-up near mid May. Climate figures give an open season running mid May to mid November. The shoulder weeks of the open season are the productive ones. At Sienna Lake the season follows that pattern closely.

• Tackle & Baits

  Ownership and access are not documented in what we hold. The map shows no ramp or car park nearby, so this is a walk-in water. Light line and small metal for the trout; a fly rod earns its place on calm evenings. Sort the permit out before you load the car. Rules for boats are stricter than rules for the bank in many places. For a change of water, Asteroid Lake is 1.1 miles distant. For Sienna Lake, the notice at the access point is the final word.