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Rainbow stocking
Lowland lake · Grant County · 15.9 acres · 1,198 ft
8,400 rainbows on Apr 22
5 months agoColumbia Basin Hatchery
Average size
Fry
under 0.1 lbeach
Planted small, to grow on — these are not catchable yet. Last catchable plant Apr 1.
2026 so far
8,400
97% of a normal year
Normal year
8,624
average of 11 seasons
Typical size
Fry
under 0.1 lb each
Stocking season
Mar–Apr
when the truck comes
This year against a 11-season average
2026normal
Recent plants
| Date | Species | Number | Size | Fish/lb |
|---|---|---|---|---|
| Apr 22 | Rainbow | 8,400 | Fry · under 0.1 lb each | 120 |
| Apr 14 | Rainbow | 8,400 | Fry · under 0.1 lb each | 98 |
| Apr 18 | Rainbow | 8,400 | Fry · under 0.1 lb each | 113 |
| Mar 22 | Rainbow | 8,400 | Fry · under 0.1 lb each | 61 |
| Mar 28 | Rainbow | 5,600 | Fry · under 0.1 lb each | 93 |
| Apr 13 | Rainbow | 5,600 | Fry · under 0.1 lb each | 100 |
| Apr 1 | Rainbow | 1,000 | Catchables · 0.4 lb each | 2.5 |
| Mar 11 | Rainbow | 8,401 | Fry · under 0.1 lb each | 99 |
17 rainbow releases on record since 2015 · from WDFW's fish plants data, as published.
This lake on WDFWWDFW fishing prospects calendar
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainbow Trout |
quiet → best this month
WDFW rates rainbow trout best in April through June.
WDFW draws one calendar per species for the whole state, so it shows the season's shape rather than this lake's own record. Check the rules for when each species is open here. This lake on WDFW
be the first to say how Martha Lake (Grant County) fished
No catch reports yet for this water.
Currently
55°
Clearfeels like 50°
Tue
Favorable
66° 49°
wind 7 kt · 5% rain
Wed
Favorable
77° 52°
wind 9 kt · 1% rain
Thu
Favorable
83° 57°
wind 11 kt · 1% rain
Fri
Favorable
80° 56°
wind 5 kt · 2% rain
Sat
Favorable
81° 57°
wind 6 kt · 0% rain
Sun
Favorable
84° 59°
wind 6 kt · 0% rain
Mon
Favorable
77° 55°
wind 17 kt · 0% rain
The current regulation for Martha Lake (Grant County) could not be confidently verified from a structured source, so this dashboard won't guess. Check the official WDFW sport fishing rules before fishing.
rules are shown exactly as published and cover every species at this location — they can change at any time, so always confirm with WDFW before fishingWant to know the best time to fish for rainbow trout this week at Martha Lake (Grant County)?
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Wind now
9mph
NNW · gusting 18
Gusts · 12h
17mph
holding or building
wind mph gusts