Au Sable River trout stocking
Iosco County, Michigan · stream
Au Sable River was last stocked 5 months ago (Jun 1, 2026). We have 80 stockings on record since Apr 17, 2017, 8 in the last 12 months (227,047 fish). Most stockings come in April to May. Species stocked: rainbow trout, brown trout, atlantic salmon.
Last stocked
5 months ago
Jun 1, 2026
Next planned
Not announced
Last 12 months
8 stockings
227,047 fish
On record
80 stockings
since Apr 17, 2017
- The most stocked water in Iosco County (80 stocking days on record).
- Stocked more often than 99% of Michigan waters on our record.
When is Au Sable River stocked?
Most stockings come in April to May. Stocked 8 times in 2026, mostly in May, usually on Wednesdays, about every 5 days.
By month, all years
Year by year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 3 | 4 | 1 | |||||||||
| 2025 | 3 | 3 | ||||||||||
| 2024 | 4 | 6 | ||||||||||
| 2023 | 5 | 3 | ||||||||||
| 2022 | 5 | 7 | ||||||||||
| 2021 | 3 | 2 | ||||||||||
| 2020 | 2 | 4 | 2 | |||||||||
| 2019 | 3 | 3 |
What is stocked
| Species | Stockings | Fish | Fish per stocking | Typical size |
|---|---|---|---|---|
| Rainbow trout | 59 | 1,519,833 | 25,760 | 7.6 in |
| Brown trout | 23 | 309,077 | 13,438 | 4.9 in |
| Atlantic salmon | 11 | 340,128 | 30,921 | 6.3 in |
Stocking history
20268 stockings · 227,047 fish
| Date | Species | Fish | Size | Since previous |
|---|---|---|---|---|
Jun 1Latest Monday | Rainbow trout | 5,076 | 7.7 in | 12 days |
May 20 Wednesday | Rainbow trout | 37,117 | 7.2 in | 2 days |
May 18 Monday | Rainbow trout | 34,133 | 7.5 in | 5 days |
May 13 Wednesday | Atlantic salmon | 29,498 | 7.6 in | 2 days |
May 11 Monday | Atlantic salmon | 15,500 | 6.7 in | 12 days |
Apr 29 Wednesday | Rainbow trout | 9,299 | 7.9 in | 1 day |
Apr 28 Tuesday | Brown troutRainbow trout | 20,199 | 7.0 in | 20 days |
Apr 8 Wednesday | Rainbow trout | 76,225 | 7.7 in | 323 days |
20256 stockings · 193,693 fish
| Date | Species | Fish | Size | Since previous |
|---|---|---|---|---|
May 20 Tuesday | Rainbow trout | 31,418 | 6.7 in | 5 days |
May 15 Thursday | Atlantic salmon | 38,728 | 6.6 in | 3 days |
May 12 Monday | Rainbow trout | 29,900 | 7.3 in | 12 days |
Apr 30 Wednesday | Rainbow trout | 9,300 | 7.7 in | 1 day |
Apr 29 Tuesday | Brown troutRainbow trout | 20,400 | 7.2 in | 20 days |
Apr 9 Wednesday | Rainbow trout | 63,947 | 7.9 in | 46 weeks |
202410 stockings · 201,011 fish
| Date | Species | Fish | Size | Since previous |
|---|---|---|---|---|
May 22 Wednesday | Rainbow trout | 22,007 | 7.0 in | 6 days |
May 16 Thursday | Rainbow trout | 28,025 | 8.0 in | 1 day |
May 15 Wednesday | Atlantic salmon | 26,592 | 7.6 in | 1 day |
May 14 Tuesday | Rainbow trout | 29,529 | 7.9 in | 12 days |
May 2 Thursday | Rainbow trout | 9,899 | 6.5 in | 1 day |
May 1 Wednesday | Rainbow trout | 9,899 | 8.0 in | 1 week |
Apr 24 Wednesday | Rainbow trout | 6,050 | 7.6 in | 1 day |
Apr 23 Tuesday | Brown trout | 5,047 | 5.0 in | 20 days |
Apr 3 Wednesday | Rainbow trout | 31,843 | 7.4 in | 2 days |
Apr 1 Monday | Rainbow trout | 32,120 | 7.6 in | 45 weeks |
20238 stockings · 249,018 fish
- May 22 rainbow trout, 11,496 fish
- May 18 atlantic salmon, rainbow trout, 79,528 fish
- May 16 rainbow trout, 25,496 fish
- Apr 25 brown trout, rainbow trout, 15,198 fish
- Apr 24 brown trout, rainbow trout, 24,900 fish
- Apr 12 rainbow trout, 30,385 fish
- Apr 11 rainbow trout, 43,565 fish
- Apr 10 brown trout, rainbow trout, 18,450 fish
202212 stockings · 251,800 fish
- May 27 rainbow trout, 10,173 fish
- May 20 rainbow trout, 23,994 fish
- May 19 rainbow trout, 24,992 fish
- May 18 rainbow trout, 23,490 fish
- May 11 atlantic salmon, 40,000 fish
- May 5 brown trout, 17,919 fish
- May 4 brown trout, 18,000 fish
- Apr 28 rainbow trout, 9,000 fish
- Apr 27 rainbow trout, 9,000 fish
- Apr 20 rainbow trout, 29,993 fish
- Apr 19 rainbow trout, 34,239 fish
- Apr 11 brown trout, rainbow trout, 11,000 fish
20215 stockings · 92,383 fish
- May 19 atlantic salmon, 26,995 fish
- May 6 brown trout, 35,998 fish
- Apr 27 rainbow trout, 8,996 fish
- Apr 26 rainbow trout, 14,500 fish
- Apr 8 brown trout, 5,894 fish
20208 stockings · 211,587 fish
- May 13 atlantic salmon, 40,000 fish
- May 4 brown trout, 17,213 fish
- Apr 30 brown trout, rainbow trout, 26,848 fish
- Apr 29 brown trout, rainbow trout, 22,085 fish
- Apr 10 rainbow trout, 29,070 fish
- Apr 1 rainbow trout, 12,668 fish
- Mar 31 rainbow trout, 25,997 fish
- Mar 25 rainbow trout, 37,706 fish
20196 stockings · 238,355 fish
- May 25 rainbow trout, 14,253 fish
- May 21 atlantic salmon, brown trout, 20,309 fish
- May 1 brown trout, rainbow trout, 74,442 fish
- Apr 23 brown trout, 5,500 fish
- Apr 17 rainbow trout, 58,866 fish
- Apr 10 rainbow trout, 64,985 fish
20187 stockings · 255,168 fish
- May 24 rainbow trout, 10,583 fish
- May 18 brown trout, 120 fish
- May 8 brown trout, 36,000 fish
- May 2 atlantic salmon, rainbow trout, 58,339 fish
- May 1 brown trout, 6,050 fish
- Apr 25 rainbow trout, 79,395 fish
- Apr 11 rainbow trout, 64,681 fish
201710 stockings · 248,976 fish
- May 25 brown trout, 150 fish
- May 23 brown trout, 5,700 fish
- May 17 rainbow trout, 9,180 fish
- May 15 brown trout, 36,000 fish
- May 8 rainbow trout, 22,616 fish
- May 3 rainbow trout, 31,591 fish
- May 1 rainbow trout, 27,299 fish
- Apr 27 atlantic salmon, rainbow trout, 53,441 fish
- Apr 26 rainbow trout, 41,494 fish
- Apr 17 rainbow trout, 21,505 fish
From Michigan fish and wildlife agency reports, collected nightly and kept after the agency takes them down. Agencies revise reports; check the agency's report before you go. Seasons and limits: Michigan fishing regulations.
Other stocked waters in Iosco County
- Tawas Riverstreamstocked May 7, 2026
- East Br Au Gres Riverstreamstocked Apr 23, 2026
- Silver Creekstreamstocked Apr 28, 2020
All stocked waters in Iosco CountyStocked this week in Michigan
Questions about Au Sable River
- When was Au Sable River last stocked?
- The latest reported stocking was Jun 1, 2026 (rainbow trout, 5,076 fish), according to Michigan agency reports.
- How often is Au Sable River stocked?
- Stocked 8 times in 2026, mostly in May, usually on Wednesdays, about every 5 days. Across all years on record, most stockings come in April to May.
- Is Au Sable River stocked often?
- The most stocked water in Iosco County (80 stocking days on record). Stocked more often than 99% of Michigan waters on our record. We count each day the agency reported stocking it.
- What kind of trout are stocked in Au Sable River?
- Rainbow trout (59 stockings, 1,519,833 fish); Brown trout (23 stockings, 309,077 fish); Atlantic salmon (11 stockings, 340,128 fish).