Merrimack County · stream · order 5 river · ~228 cfs typical
Blackwater River
Stocked 6× on record · NH Fish and Game
Blackwater River is a stream in Merrimack County, New Hampshire, stocked with Brown Trout and Rainbow Trout — most recently on Jun 2, 2026. FishableWaters aggregates every stocking record for this water from NH Fish and Game; the latest schedule and today's bite windows are above.
Best days this week
Days near a new or full moon tend to fish best.
Today's bite windows
Conditions, next 3 days
Today
Overcast
77°
64°
9 mph
32%
Fri
Rain
80°
60°
10 mph
13%
Sat
Overcast
88°
63°
8 mph
2%
↗ pressure risingPost-front rising pressure can slow things down for a day.
Stocking ledger
| — 2026 — | ||||
| Jun 2 | Brown Trout | 600 | 2.7/lb | |
| Apr 27 | Rainbow Trout | 250 | 2.1/lb | |
| Apr 27 | Rainbow Trout | 250 | 2.1/lb | |
| Apr 23 | Brown Trout | 100 | 2.86/lb | |
| Apr 23 | Brown Trout | 265 | 2.82/lb | |
| Apr 23 | Rainbow Trout | 700 | 2.5/lb | |
Angler reports
What's biting
No reports yet — be the first
Best bite times
No reports yet
Field notes
No notes yet
All New Hampshire waters with brown trout → · All New Hampshire waters with rainbow trout →
Nearby waters
- Deer Meadow Brook0.3 mi
- Ox Pond1.7 mi
- Warner River1.9 mistocked May 8, 2026
- Dolf Brook1.9 mi
- Pillsbury Lake2.6 mi
- Contoocook River Reservoir2.4 mi
- Little Pond2.5 mi
- Flaghole Pond3.3 mi
Seasons, limits, and rules are the state's call — check the official NH regulations and buy your license before you go. We link the source; we never restate the rules.
Blackwater River fishing — FAQ
What fish are stocked in Blackwater River?+
Blackwater River is stocked with Brown Trout and Rainbow Trout in Merrimack County, New Hampshire, most recently on Jun 2, 2026 by NH Fish and Game. The full stocking ledger is on this page.
When does Blackwater River get stocked?+
Going by 6 records since 2026, stocking at Blackwater River peaks in April. Check this page for the season's scheduled and most recent stockings.
Do I need a license to fish Blackwater River?+
Yes — New Hampshire requires a fishing license. Buy one from the state and check current seasons and limits before you go; both are linked on this page.
Where is Blackwater River?+
Blackwater River is a stream in Merrimack County, New Hampshire. Driving directions and an interactive topo map are on this page.
Data: NH Fish and Game · updated Jun 2, 2026 · checked daily · we publish what agencies publish, nothing else.