← Alpena County

Upper So Br Thunder Bay R

📍 Alpena County, Michigan

Upper So Br Thunder Bay R is a fishing water in Alpena County, Michigan (Northern Lake Huron management unit).

32
Fish species
0
Boat launches
✓
Public access
Conditions today C 54/100 Average conditions Last stocked No records No DNR stocking on file Keeper size (estimated) No estimate Not enough size data Access 0 boat launches Public access

📊 Fishing Conditions

The fishing conditions score rates how favorable Upper So Br Thunder Bay R (Alpena County) looks for the day you pick (today by default), from 0 to 100. It adds up five things: how recently the lake was stocked, the moon phase, the season, how many game and panfish species live here (such as northern pike, smallmouth bass and golden shiner), and the size of the lake. It does not include the weather forecast. The cards below show how many points each factor contributed.

C
54/100
Saturday, October 31, 2026
Conditions score

Average conditions, fish are catchable but may be selective.

🎣 Stocking
No recent stocking data
🌖 Moon Phase
Waning Gibbous
Feeding bonus
🍂 Season
Fall feeding frenzy
October
🐟 Species
5 game species present
Game & panfish
📐 Lake Size
Size unknown
Surface area

Fishing Tips for Upper So Br Thunder Bay R (Alpena County) Today

Fall fish at Upper So Br Thunder Bay R (Alpena County) are feeding heavily before winter. Match the forage: shad, crawfish, and perch patterns work well.

📊 Fishing Pressure

Fishing pressure is our estimate of how busy Upper So Br Thunder Bay R (Alpena County) is likely to be today. It looks at the day of the week, the time of year, and whether the lake has been stocked recently, because fresh stockings tend to draw anglers. Lower pressure usually means more room to work the water for northern pike, smallmouth bass and golden shiner.

Moderate estimated pressure today
Weekend Peak season

Moderate activity expected. Midweek mornings are typically quieter.

Estimate based on day of week, season, and recent stocking. Not a live crowd count.

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📅 Best Time to Fish Upper So Br Thunder Bay R

Combined bite activity across all 32 species in this lake.

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📏 Fishing Regulations

Statewide general rules for the species found here. Individual waters can have exceptions (special size limits, closed seasons, trout lake types), so check this lake's listing in the official DNR Fishing Guide before heading out.
SpeciesMin sizeDaily limit
Northern Pike24"2
Smallmouth Bass14"5 bass combined
Rock BassNone25 sunfish combined

📋 Upper So Br Thunder Bay R Stocking Records

No stocking records on file for this lake. This does not mean the lake is unstocked, check the Michigan DNR Stocking Database for the most current records.

⚓ Upper So Br Thunder Bay R Boat Launches

No launch data on record for this lake. Browse all Michigan boat launches.

💡 Angler Tips for Upper So Br Thunder Bay R

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🌤 Current Upper So Br Thunder Bay R Weather Conditions

No coordinates on file for this lake.
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🔗 Resources

📋 DNR Stocking Database 📖 Michigan Fishing Guide (PDF) 🎣 Log a catch here