Browse 77,081 DNR stocking events from 1979 to present. Filter by year and month to explore historical patterns.
Monthly breakdown for 2026. Darker = more events. Click a month to filter.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 |
Total stocking events per year across all Michigan lakes. Click any bar to explore that year.
Top 10 lakes sorted by stocking frequency. Click any lake for its full history.
Fish species with the most stocking activity across all years, ranked by event count.
Counties with the most DNR stocking activity across all years. Click any county to browse its lakes.
Actual DNR stocking events from the last 45 days.
April is historically the most active month for DNR stocking in Michigan, with 23,330 events on record. Spring months (April through June) generally see the highest activity as hatcheries release fish before the summer season.
Allegan County has the most DNR stocking records of any Michigan county, with 4,356 events across 19 lakes. Top counties tend to have larger numbers of public lakes and higher recreational fishing pressure.
All records are sourced directly from the Michigan Department of Natural Resources and synced regularly. Nothing is estimated, every event shown came from the official DNR stocking report dating back to 1979.
Yes. Every free account includes 1 stocking alert: you get an email when the DNR adds a new stocking record for your chosen lake or species, the same day the data hits our system. Fishing Pro removes the cap so you can track as many lakes and species as you like.