Fishing at Lake Mapsa, Northwest Arctic Borough, Alaska

• Overview

  This water sits in Northwest Arctic Borough, Alaska. It stands 367 feet above sea level. Around 235 acres of surface means several distinct areas to work. Around 2.6 miles of margin, front to back. Most waters listed here for Northwest Arctic Borough are larger. For supplies, Kotzebue is 75 miles out. For a city, Anchorage is 585 miles off. No boundary runs near, so the county rules hold throughout.

• Where to Fish on Lake Mapsa

  Nothing we hold settles how deep this runs. On a natural lake the weed line and the shelf beyond it do the work. Look for the band where the shallows give up and the bottom falls away. Fish documented in Northwest Arctic Borough include broad whitefish, northern pike, Arctic grayling, longnose sucker and alaska whitefish. What holds for the county may not hold for this water. On Lake Mapsa that means starting tight and working out.

• Seasonal Patterns

  Between January at about -2°F and July at about 54°F, the water has a wide range to work through. Little of the calendar is open water, so timing counts for everything. Break-up comes around early June, and the run that follows is short and strong. Break-up near early June, freeze-up near mid October: that is the shape of an average year. June through September is the settled part of the year, with the shoulders busier for fish. That shapes the year on Lake Mapsa.

• Tackle & Baits

  No access rule appears in what we hold. No dam controls it, and the level follows the season. No made access is recorded, so a short walk in is the likely arrangement. Trout here take small spinners, spoons and, where fly water allows, a nymph or dry. Take the rules with you rather than trusting memory. Access can change hands, so last year's answer may not hold. If the gate is shut, Lake Tagakvik at 5 miles is the nearest alternative. Where Lake Mapsa is concerned, a local answer beats a written one.