Photo of fly fishing for Atlantic salmon - Credit:: MAFW / Bill Byrne

Subdrainage Maps

Click on one of the Connecticut River subdrainages listed below to see a map that shows dams and other barriers to migratory fish passage (the subdrainage map below is for reference, not links). ) Some of these maps may not be completely up-to-date and may incorrectly suggest passage or lack of passage at certain locations. Please contact us for more current information. All maps open in a separate window and are about 100 KB in size.

1. Eightmile	9. Ashuelot	17. Passumpsic	25. Williams
2. Salmon	10. Cold	18. Stevens	26. Saxtons
3. Hockanum	11. Sugar	19. Wells	27. West
4. Scantic	12. Mascoma	20. Waits	28. Deerfield
5. Chicopee	13. Ammonoosuc	21. Ompompanoosuc	29. Mill (3)
6. Fort	14. Israel	22. White	30. Westfield
7. Sawmill	15. Upper Ammonoosuc	23. Ottauquechee	31. Manhan
8. Millers	16. Nulhegan	24. Black	32. Farmington
			33. Mattabesset

Map of Subdrainages of the Connecticut River Watershed. Credit: USFWS

Many thanks to Kirsten McClaid-Cook for designing the individual subdrainage maps!