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Iosco County

Au Sable River

Michigan DNR logged 7 trout stocking dates at Au Sable River in 2026 so far, 227,549 fish in all. The latest was on Jun 1, 2026.

Michigan DNR data pulled . Latest record in the Michigan DNR data for any water: Oct 13, 2026.

Map: © OpenStreetMap contributors

Au Sable River in numbers

fish stocked in 2026, through Nov 6
227,549
by the same date in 2025
207,388
in all of 2025
207,388
Stocking log

Every stocking record

Every trout and salmon release Michigan DNR lists for this water in the last two years, newest first, then yearly totals since 2020. Counts include small fish (fingerlings) as well as catchable trout; the average length tells them apart (the DNR records it in centimetres; it is shown here in inches). The site is the stocking point the DNR names within the water.

Last stocked, Jun 1, 20265,076Rainbow trout, avg 7.7 in
2026 · 227,549 fish on 7 dates
DateSpeciesFishSiteAvg. length
Jun 1Rainbow trout5,076 fish · Rea Road5,076Rea Road7.7 in
May 20Rainbow trout37,117 fish · Rea Road37,117Rea Road7.2 in
May 18Rainbow trout34,133 fish · Rea Road34,133Rea Road7.5 in
May 13Atlantic salmon29,498 fish · Whirlpool Pas29,498Whirlpool Pas7.6 in
May 11Atlantic salmon7,750 fish · Whirlpool Pas7,750Whirlpool Pas6.7 in
May 11Atlantic salmon7,750 fish · Whirlpool Pas7,750Whirlpool Pas6.7 in
Apr 23Coho salmon15,000 fish · Rea Road15,000Rea Road5.7 in
Apr 23Coho salmon15,000 fish · Whirlpool Pas15,000Whirlpool Pas5.7 in
Apr 8Rainbow trout35,162 fish · Rea Road35,162Rea Road7.6 in
Apr 8Rainbow trout20,543 fish · Rea Road20,543Rea Road7.8 in
Apr 8Rainbow trout20,520 fish · Rea Road20,520Rea Road7.8 in
2025 · 207,388 fish on 6 dates
DateSpeciesFishSiteAvg. length
May 20Rainbow trout29,882 fish · Rea Road29,882Rea Road7.1 in
May 20Rainbow trout1,536 fish · Rea Road1,536Rea Road6.3 in
May 15Atlantic salmon13,450 fish · Whirlpool Pas13,450Whirlpool Pas6.6 in
May 15Atlantic salmon13,450 fish · Whirlpool Pas13,450Whirlpool Pas6.6 in
May 15Atlantic salmon11,828 fish · Whirlpool Pas11,828Whirlpool Pas6.6 in
May 12Rainbow trout29,900 fish · Rea Road29,900Rea Road7.3 in
Apr 24Coho salmon21,699 fish · Whirlpool Pas21,699Whirlpool Pas5.6 in
Apr 23Coho salmon21,696 fish · Rea Road21,696Rea Road5.7 in
Apr 9Rainbow trout25,543 fish · Rea Road25,543Rea Road7.9 in
Apr 9Rainbow trout19,255 fish · Rea Road19,255Rea Road7.9 in
Apr 9Rainbow trout19,149 fish · Rea Road19,149Rea Road7.9 in
Every year since 2020
YearStocking datesFish
20267227,549
20256207,388
20248265,110
20235190,470
20228244,231
2021126,995
20207196,371
2020 – 2026

Trout stocked each year

2026 is outlined because the year is not over. The tallest full year is yellow. Counts include fingerlings. Records start in 2020.

  1. 196k2020: 196,371 fish
  2. 27k2021: 26,995 fish
  3. 244k2022: 244,231 fish
  4. 190k2023: 190,470 fish
  5. 265k2024: 265,110 fish
  6. 207k2025: 207,388 fish
  7. 228k2026: 227,549 fish

What is stocked here

All records since 2020
SpeciesFishShare
Rainbow trout822,91061%
Coho salmon276,66920%
Atlantic salmon258,53519%

Where it is

Michigan trout stockingAll Iosco County watersRecently stocked in Michigan

No single map point is given for this water in the USGS names database, so no map is shown.

Also in Iosco County: East Br Au Gres River, Tawas River.

Source: DNR fish stocking database, Michigan Department of Natural Resources. Pulled . Check the agency and the current fishing rules before you go.