A high alpine lake near Monitor Pass that's really the brood-stock water for California's Lahontan cutthroat program — which is the whole reason it matters. These are native Lahontan cutthroat, a threatened fish being carefully managed back, so Heenan is barbless catch-and-release only and open just a few days a week in a short season. The fishing, when it's on, is for big cutthroat on leeches and Callibaetis from a tube, but the right frame here is privilege, not appetite. Handle these fish like the rare native treasure they are, and follow every rule to the letter.
Hot — dawn and dusk onlySustained heat. Fish deep, handle carefully, stop if a fish struggles.
The air has been hot long enough for the whole surface to be warm. There is no water sensor here, so we cannot tell you the depths are safe — only that they are the most likely place to find a few cool degrees if the water is deep enough. On the big reservoirs and Highland lochs the cool layer sits at four to ten metres, but late-summer oxygen losses can narrow it. On shallow club fisheries under five metres there is no refuge. Fish dawn and dusk only or rest the venue. Barbless hooks. Land it fast. Wet hands. No air shots. If a fish swims off slowly, rolls, or needs more than half a minute to revive, stop. That is the welfare signal — not the temperature.
- DepthDeep waters: a fast sinker to four to ten metres, but watch the colder deeps for poor oxygen late in the season. Shallow fisheries: no refuge. First light, last light, or come back another day.
- TimingTwo hours after dawn and the hour before dark. Nothing else. The real stop signal is the fish on release — if recovery is slow, stop.
A patient day, if you fancy it
Good wave on — drift country. Take your time — read the water before you cast.
39% confidence — limited data
Live now
Conditions on the water
Trends shown where the gauge supports them
Wind
W 18 km/h
Gentle breeze
Wave
40 cm chop
Water temp
—
No reading
Air temp
24°C
Cloud
Clear
Pressure
1014 hPa
Rain · 24h
0.0 mm
No rain
Some readings unavailable — check directly before fishing.
How to fish · for cutthroat trout
The brief
When · where · method · kit
How to fish it · for cutthroat trout
When
The short restricted late-season window only
Where
Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.
Today's tactical plan
The plan
Plan A · Plan B · what to watch · bank or boat
The plan
Plan A
Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.
Plan B
If the main plan is not working, switch to a smaller, more imitative pattern fished slower and deeper. A change of drift angle can also make a difference.
Watch for
Evening tends to be the best period in summer — stay late if you can for a sedge or spinner fall.
Boat — drift
A gentle ripple is ideal for drifting — broadside drift covering the wind lanes should be productive.
Hatches & runs
What's on, when
Twelve months at a glance
Through the year
0–3 scale · June highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Daddy Long LegsHatch
2
3
2
Murrough (Great Red Sedge)Hatch
1
2
1
Lake OliveHatch
1
2
2
2
2
2
1
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Today's fly · curated pack
Top pattern + the box
4 patterns from this venue's curated pack
Evidence
Why today scores what it does
The factors driving today's verdict
Why this score
- summer conditions with clear skies and breezy wind.
About this water · Lough note · 4 min read
Heenan Lake · profile
Who this water suits
Strengths · watch-outs · best for
About this water
Heenan Lake, on the water
Field guide · contributor-editedHeenan Lake · about
What this water is
Background · character · contributors
About this water
A high alpine lake near Monitor Pass that's really the brood-stock water for California's Lahontan cutthroat program — which is the whole reason it matters. These are native Lahontan cutthroat, a threatened fish being carefully managed back, so Heenan is barbless catch-and-release only and open just a few days a week in a short season. The fishing, when it's on, is for big cutthroat on leeches and Callibaetis from a tube, but the right frame here is privilege, not appetite. Handle these fish like the rare native treasure they are, and follow every rule to the letter.
- Lake
- Mixed
Heenan Lake · directions
How to get to the water
Directions
Heenan Lake · zones
Where the rules change
Seasons · zones · per-species rules
Seasons & zones
- TroutFriday before Labor Day → Last Sunday in October
Heenan Lake · permits
Good to know
Permits & access
Permit required — see local rules.
- Barbless catch-and-release only; very short restricted season, limited open days
- Native Lahontan cutthroat brood water — verify current CDFW dates and rules; conservation first.
Heenan Lake
Google Places
A high alpine lake near Monitor Pass that's really the brood-stock water for California's Lahontan cutthroat program — which is the whole reason it matters.
Species
Hot — dawn and dusk onlySustained heat. Fish deep, handle carefully, stop if a fish struggles.
The air has been hot long enough for the whole surface to be warm. There is no water sensor here, so we cannot tell you the depths are safe — only that they are the most likely place to find a few cool degrees if the water is deep enough. On the big reservoirs and Highland lochs the cool layer sits at four to ten metres, but late-summer oxygen losses can narrow it. On shallow club fisheries under five metres there is no refuge. Fish dawn and dusk only or rest the venue. Barbless hooks. Land it fast. Wet hands. No air shots. If a fish swims off slowly, rolls, or needs more than half a minute to revive, stop. That is the welfare signal — not the temperature.
- DepthDeep waters: a fast sinker to four to ten metres, but watch the colder deeps for poor oxygen late in the season. Shallow fisheries: no refuge. First light, last light, or come back another day.
- TimingTwo hours after dawn and the hour before dark. Nothing else. The real stop signal is the fish on release — if recovery is slow, stop.
A patient day, if you fancy it
Good wave on — drift country. Take your time — read the water before you cast.
39% confidence — limited data
Conditions
Wind
W 18 km/h
Gentle breeze
Wave
40 cm chop
Water temp
—
No reading
Air temp
24°C
Cloud
Clear
Pressure
1014 hPa
Rain · 24h
0.0 mm
No rain
Some readings unavailable — check directly before fishing.
Condition match
65%
Cloud70%
Wind65%
Temp60%
A reasonable day here, though temperature isn't quite in the sweet spot.
How to fish it · for cutthroat trout
When
The short restricted late-season window only
Where
Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.
The plan
Plan A
Set up a broadside drift and cover the water systematically. Work a bushy searching pattern on the bob and drop a contrasting nymph on the point.
Plan B
If the main plan is not working, switch to a smaller, more imitative pattern fished slower and deeper. A change of drift angle can also make a difference.
Watch for
Evening tends to be the best period in summer — stay late if you can for a sedge or spinner fall.
Boat — drift
A gentle ripple is ideal for drifting — broadside drift covering the wind lanes should be productive.
Why this score
- summer conditions with clear skies and breezy wind.
Through the year
0–3 scale · June highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2
Daddy Long LegsHatch
2
3
2
Murrough (Great Red Sedge)Hatch
1
2
1
Lake OliveHatch
1
2
2
2
2
2
1
Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.
Gallery · 1
Terrain map
Permits & access
Permit required — see local rules.
- Barbless catch-and-release only; very short restricted season, limited open days
- Native Lahontan cutthroat brood water — verify current CDFW dates and rules; conservation first.
Directions
About this water
A high alpine lake near Monitor Pass that's really the brood-stock water for California's Lahontan cutthroat program — which is the whole reason it matters. These are native Lahontan cutthroat, a threatened fish being carefully managed back, so Heenan is barbless catch-and-release only and open just a few days a week in a short season. The fishing, when it's on, is for big cutthroat on leeches and Callibaetis from a tube, but the right frame here is privilege, not appetite. Handle these fish like the rare native treasure they are, and follow every rule to the letter.
- Lake
- Mixed
Seasons & zones
- TroutFriday before Labor Day → Last Sunday in October
About this water · Lough note · 4 min read
A high alpine lake near Monitor Pass that's really the brood-stock water for California's Lahontan cutthroat program — which is the whole reason it matters. These are native Lahontan cutthroat, a threatened fish being carefully managed back, so Heenan is barbless catch-and-release only and open just a few days a week in a short season. The fishing, when it's on, is for big cutthroat on leeches and Callibaetis from a tube, but the right frame here is privilege, not appetite. Handle these fish like the rare native treasure they are, and follow every rule to the letter.
Other water nearby · 5