Hydrological Unit: West Branch Mattawamkeag River
| HUC | Name |
|---|---|
| 010200030101 | Rockabema Lake |
| 010200030102 | West Hastings Brook |
| 010200030103 | East Hastings Brook |
| 010200030104 | Alder Brook |
| 010200030105 | Crystal Lake-Crystal Brook |
| 010200030106 | Cold Brook |
| 010200030107 | Fish Stream |
| 010200030108 | Caribou Lake-Sly Brook |
| 010200030109 | Upper West Branch Mattawamkeag River |
| 010200030110 | Dyer Brook |
| 010200030111 | Middle West Branch Mattawamkeag River |
| 010200030112 | Babcock Brook |
| 010200030113 | Lower West Branch Mattawamkeag River |