St. Croix River, Southwest — Fishing restrictions
| Season / Restrictions | Bag Limit | Minimum Size | Maximum Size |
|---|---|---|---|
| April 15 – September 15 Non-boundary waters of rivers, brooks and streams | 5 | 10cm | N/A |
| April 15 – September 30 Boundary waters between New Brunswick and Maine of rivers, brooks and streams | 5 | 15cm | N/A |
| Exceptions | |||
| April 15 – December 31 Fly Fishing in rivers, brooks and streams from the old Union Mills Bridge remnants upstream to the power house dam at Milltown | Fly fishing only beginning Apr 15 | ||
