Maine
East Branch Penobscot River at Grindstone
Location Snapshot
East Branch Penobscot River at Grindstone is a northern Maine moving-water fishery with wild coldwater species. The principal supported target is brook trout, with landlocked salmon providing additional species variety within the same fishery.
Current River Rating
Fair · 89
Conditions are mixed. Review the details below before heading out.
Scores are model-specific and are not directly comparable across water types.
Partial water evidence · Medium confidence
Should I Go?
Wait
Timing Outlook
This timing outlook is informational only; current river conditions remain Fair.
Why
- Current conditions do not support a reliable fishing window.
- Water temperature is unavailable.
Favorable Factors
- Recent precipitation has been light.
Timing Evidence
Overcast or filtered daylight is favorable.
Current Readings
- Flow
- 397 CFS
- Gage Height
- 4.58 ft
- Water Temperature
- Not available
- Observation Time
- Oct 20, 2026, 11:00 AM
Updated recently · USGS station 01029500 · Direct monitoring location
Readings from past 7 Days
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Historical readings are provided for context. Readings outside the current freshness window are not used to rate current conditions.
Better Nearby Options
Checking nearby StrikeTracks waters…
Preliminary guidance only. Always assess current weather, access, water depth, current speed, and your own ability before entering the river.
Changing Conditions Advisory
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Weather Near Gauge
Current Weather
Fog
Temperature
33°F
Feels like
28°F
Wind
2 mph NW
Wind gust
10 mph
Current precipitation
0.00 in
Updated
Oct 20, 2026, 7:30 AM
Recent Rainfall
Estimated precipitation near this gauge
Last 6 hours
0.00 in
Last 24 hours
0.00 in
Last 48 hours
0.00 in
Little recent rainfall near this river.
Next 24 Hours
Tue 8 AM
Partly cloudy
Temp 35°F
Chance 0%
Precip 0.00 in
Wind 2 mph
Tue 12 PM
Clear
Temp 55°F
Chance 0%
Precip 0.00 in
Wind 9 mph
Tue 4 PM
Clear
Temp 56°F
Chance 0%
Precip 0.00 in
Wind 9 mph
Tue 8 PM
Clear
Temp 43°F
Chance 0%
Precip 0.00 in
Wind 6 mph
Wed 12 AM
Clear
Temp 37°F
Chance 0%
Precip 0.00 in
Wind 6 mph
Wed 4 AM
Clear
Temp 34°F
Chance 0%
Precip 0.00 in
Wind 6 mph
Four-Day Forecast
Tue, Oct 20
Fog
High 57°F / Low 32°F
Chance 0%
Precip 0.00 in
Max gust 24 mph
Wed, Oct 21
Overcast
High 51°F / Low 32°F
Chance 0%
Precip 0.00 in
Max gust 14 mph
Thu, Oct 22
Overcast
High 56°F / Low 34°F
Chance 11%
Precip 0.00 in
Max gust 28 mph
Fri, Oct 23
Clear
High 47°F / Low 31°F
Chance 12%
Precip 0.00 in
Max gust 31 mph
Weather and rainfall are estimated for this river's coordinates. Local conditions can vary, especially in mountainous terrain and during isolated storms.
Recent rainfall can influence river flow, but the timing and magnitude depend on watershed size, soil conditions, upstream reservoirs, and dam releases.
Weather data: Open-Meteo
Historical Flow
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Fishing Overview
Wild brook trout are in the East Branch Penobscot River at Grindstone, along with landlocked salmon.
Fishery Profile
Documented species you may encounter at East Branch Penobscot River.
Species images are AI-generated illustrations for visual reference and may simplify natural variation. Fishery records are based on the cited agency sources. About fish illustrations
Target species
Brook Trout
Salvelinus fontinalis
- Expectation
- Primary
- Population
- Wild
- Native status
- native
- Confidence
- High confidence
Landlocked Salmon
Salmo salar
- Expectation
- Common
- Population
- Wild
- Native status
- native
- Confidence
- High confidence
Fishery characteristics
- Composition
- Wild
- Great Lakes tributary
- No
- Flow regime
- Natural flow
Best seasons
- Spring
- Summer
- Fall
Common techniques
- Fly fishing
- Nymphing
- Spinning
- Streamers
Official sources
Hatch Match
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Location and Access
USGS monitoring location
Maine
The map marker represents the cataloged waterbody or monitoring location and may not indicate legal parking or public access. Confirm access through the official information before visiting.
Access, Parking, and Regulations
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