US lakes & pondsUS lakes & pondsHarrisville · Nelson, New Hampshire — NH Fish & Game Region 4 (Southwest NH). Listed as a Lake Trout and/or Salmon in the 2026 Fishing Digest.
Source: NH Fish & Game NH Freshwater Fishing Guide layer (2026; depth/area/trophic from NHDES). Depth map: NHFG bathymetry map (PDF).
The red circle marks Silver Lake.
Towns and counties: NHFG, NHDES and U.S. Census town boundaries (shore towns found by overlaying the lake outline).
As of 2026-10-10. Check the official source before you go.
Numbers on the map match the list at rightbelow.
Shoreline: NHDES Lake Information Mapper lake outline (NH hydrography data). State outline: U.S. Census Bureau TIGERweb. Points: NH Access Sites to Public Waters (NH OPD / NHFG). Interactive map: Leaflet with © OpenStreetMap contributors. Not for navigation.
Live from the National Weather Service API for the lake's coordinates (42.9607, -72.1408). The nearest station may be several miles away. NWS forecast for Silver Lake. No live water-temperature sensor is shown because we haven't found a public one for this lake.
Based on solunar theory, an estimate. Major periods (about 2 hours) center on when the moon is directly overhead or underfoot; minor periods (about 1 hour) center on moonrise and moonset. The 0–100 activity score rises during those periods and gets a boost near sunrise and sunset and around the new and full moon. Weather, water temperature and pressure often matter more. Sun and moon times are calculated in your browser from the lake's coordinates with standard astronomy formulas, shown in ET (America/New_York), and accurate to within a few minutes.
NHDES keeps an ice-in / ice-out record for Silver Lake. See the NHDES ice-out dates for Silver Lake.
We link to the record instead of copying it here; check the NHDES page for this year's date.
★ = stocked in 2026. Species list from NHFG Fishing Guide codes: RT, LT, SMB, ECP, BBH (names decoded by us; NHFG does not publish the legend with the layer). NHFG fishery type: Cold/Warm.
3 stocking trips in 2026, 2,646 fish in total.
| Date | Species | Fish | Lbs | Hatchery |
|---|---|---|---|---|
| Apr 6, 2026 | Rainbow trout (1+ yr) | 1,000 | 624 | Milford |
| Apr 27, 2026 | Rainbow trout (1+ yr) | 1,300 | 591 | Milford |
| Jun 1, 2026 | Landlocked salmon (1+ yr) | 346 | 84 | Milford |
NHFG Fish Stocking (2026) feature service · NHFG stocking report
Pulled Oct 10, 2026.
The 2026 NH Freshwater Fishing Digest lists Silver Lake as a Lake Trout and/or Salmon Lake.
Additional rule for this water: No minimum for trout. Lake trout minimum length is 15 inches. From April 1 through September 30, the combined daily limit for salmon, trout is 4 fish, of which no more than 2 fish may be salmon. The daily limit for lake trout is 2 fish.
2026 NH Freshwater Fishing Digest: Lakes & Ponds with Special Rules · General Rules
Summary only; other species follow the general rules. As of Oct 10, 2026.
1 public access site listed, 1 with a boat ramp or trailer launch.
| Site | Town | Owner | Type | Parking | Fee | Uses | Map |
|---|---|---|---|---|---|---|---|
| Boat Landing | Harrisville | Town - Harrisville (RTPW) | Ramp · Gravel ramp | Paved | No fee | Fishing, Boating Access: Partial | 42.9494, -72.1333 |
NH Access Sites to Public Waters (NH OPD / NHFG)
Fees, hours and rules change; confirm with the site owner before you go.
The 2026 Fishing Digest also notes: Headway speed certain times.
NH State Police Marine Patrol, Restricted Bodies of Water
These are the restrictions listed for this water. Statewide boating laws (RSA 270, Saf-C 400) also apply. As of Oct 10, 2026.
None documented NHDES lists no known invasive species in Silver Lake.
NHDES Lake Information Mapper · RSA 487:16-d · RSA 487:16-c
As of Oct 10, 2026.
Check before you swim: the NHDES Healthy Swimming Mapper is updated daily. NHDES history: cyanobacteria notices for Silver Lake. If you see a bloom, stay out of the water, keep pets out, and report it to NHDES.
| Trophic class | Oligotrophic (clear, low-nutrient) |
| Water quality class | Class B (NH surface water classification) |
| NHDES lake surveys | 1978, 1990, 1998 |
| Volunteer monitoring | Part of the NHDES Volunteer Lake Assessment Program (VLAP) |
| Fish consumption | NHDES mercury report for Silver Lake |
Straight-line distance between lake centers. All New Hampshire lakes & ponds · All waters in Harrisville