Grub Detention Reservoir Fishing near Glasgow, Montana

• Overview

  In Montana, Grub Detention Reservoir belongs to Valley County. The bank is 2,211 feet above sea level. With some 229 acres of water, there is room for a boat but no need of one. Some 3.2 miles of bank gives room to move when the wind turns. It ranks high for size among our Valley County listings. For supplies, Glasgow is 16 miles out. Malta lies 49 miles off, Wolf Point another 59 miles. One jurisdiction covers this water end to end.

• Where to Fish on Grub Detention Reservoir

  Our records carry no depth, so judge it from the bank. The old creek line under the surface is the feature worth finding. Inflow corners move water, and moving water gathers fish. Public occurrence data for Valley County names Chinook salmon, northern pike, cisco and walleye. At least one recorded species is protected in parts of its range; read the local rules before targeting anything. The near bank of Grub Detention Reservoir is often the one people ignore.

• Seasonal Patterns

  On the long-term average, July reads 72°F and January reads 14°F. The middle months are generous; the ends are demanding. The lid arrives early and lasts until roughly early April. The water is typically free of ice between early April and late November. Look to early summer and the first cool weeks of autumn. It holds true on Grub Detention Reservoir more years than not.

• Tackle & Baits

  Public data does not answer the access question here. No car park, ramp or path is recorded within easy reach of the shore. A small crankbait along the drop and a worm in the thick stuff cover the bass. Look for a notice board at the entrance. Some ground is open by custom rather than by right, so tread carefully. Should this one be busy, Boundary Reservoir is 1.4 miles off. Confirm access to Grub Detention Reservoir locally before you travel.