Boundary County · lake · 2 acres
Sinclair Lake
1 stocking on record · IDFG
Sinclair Lake is a lake in Boundary County, Idaho, stocked with Rainbow Trout (Triploid) — most recently on Apr 22, 2026. FishableWaters aggregates every stocking record for this water from IDFG; the latest schedule and today's bite windows are above.
Best days this week
Days near a new or full moon tend to fish best.
Today's bite windows
Conditions, next 3 days
Today
Clear
88°
58°
9 mph
0%
Fri
Partly cloudy
92°
67°
7 mph
0%
Sat
Clear
89°
62°
19 mph
1%
↗ pressure risingPost-front rising pressure can slow things down for a day.
Stocking ledger
| — 2026 — | ||||
| Apr 22 | Rainbow Trout (Triploid) | 450 | 13" | |
Angler reports
What's biting
No reports yet — be the first
Best bite times
No reports yet
Field notes
No notes yet
Nearby waters
- Round Prairie Creek0.4 mi
- Bussard Lake1.3 mi
- Spruce Creek1.6 mi
- Geyselman Lake2.4 mi
- Gillon Creek3.1 mi
- Queen Lake3.5 mi
- Robinson Lake3.4 mistocked Apr 29, 2026
- Spruce Lake3.6 mi
Seasons, limits, and rules are the state's call — check the official ID regulations and buy your license before you go. We link the source; we never restate the rules.
Sinclair Lake fishing — FAQ
What fish are stocked in Sinclair Lake?+
Sinclair Lake is stocked with Rainbow Trout (Triploid) in Boundary County, Idaho, most recently on Apr 22, 2026 by IDFG. The full stocking ledger is on this page.
Do I need a license to fish Sinclair Lake?+
Yes — Idaho requires a fishing license. Buy one from the state and check current seasons and limits before you go; both are linked on this page.
Where is Sinclair Lake?+
Sinclair Lake is a lake in Boundary County, Idaho. Driving directions and an interactive topo map are on this page.
Data: IDFG · updated Apr 22, 2026 · checked daily · we publish what agencies publish, nothing else.