Armstrong Lake is a stillwater in the Duncan Lake watershed, Expansion of Beaton Creek, E of Beaton Arm Upper Arrow Lake. Surface area not recorded.
No live gauge
No gauge readings are available for this water.
Season
Driving directions
Region 4 Regulations — guide reviewed 2026-07-31
Confirm the current BC freshwater fishing regulations (Region 4, Kootenay), including any bait, motor or ice-fishing limits for this lake, before you fish.
The water
Armstrong Lake lies Expansion of Beaton Creek, E of Beaton Arm Upper Arrow Lake; in the Duncan Lake watershed. It covers surface area not recorded. The lake survey puts it at max 6 m, mean 3.4 m, which sets the depth you fish.
The fishing
Armstrong Lake fishes on classic stillwater lines: chironomids over the shoals, leech and attractor retrieves along the drop-offs, and depth or troll work to the shoal-and-drop-off structure. Match the season and confirm against a local report.
Conditions
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Depth: max 6 m, mean 3.4 m, Secchi 5.2 m (BC lake survey 1970-06-29).
Access & the rules
Confirm the launch, parking and any motor/float or seasonal restrictions for Armstrong Lake locally before you commit a day; the map shows where the lake sits in its drainage.
Before you fish
Confirm the current BC freshwater fishing regulations (Region 4 – Kootenay) before you go. Official synopsis: gov.bc.ca fishing regulations.