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New Jersey

Spruce Run Reservoir

A 1,355-acre reservoir in Hunterdon County, New Jersey, Spruce Run Reservoir presents largemouth patterns that read off cover, depth, and time of day.

Surface
1,355acres
Primary species
Largemouth
§ 01Today on the water · Spruce Run Reservoirvia Open-Meteo · 16:30 local
Air temp
73.9°F
Barometric
29.90″
↓falling 24h(-0.17)
Wind
5mph
from NE
Moon
Waxing Crescent
day 4.0 · 17% lit

Air conditions sampled near the lake center, not measured on the water · refreshed ~15 min

§ 03Next 3 daysvia Open-Meteo · interpretation
  1. 18
    julSat

    Better early

    hi 87° · lo 63°

    Pre-dawn through 9am. Get on the water before the front; the bite likely shrinks once precip starts.

    ── front rolling in · sw wind setting up

  2. 19
    julSun

    Stable window

    hi 80° · lo 66°

    Anytime through the day. Quiet weather day; lean on seasonal pattern and structure.

    ── light nw wind

  3. 20
    julMon

    Watch the wind

    hi 83° · lo 59°

    Lean into wind-fed shorelines, all day. Wind drives bait position today; pick the shoreline taking it.

    ── direction shift overnight

§ 04Field notesNew Jersey

Where it is

Spruce Run Reservoir sits in Hunterdon County, New Jersey, covering about 1,355 acres. Productive zones shift through the year more than the lake outline suggests.

Seasonal pattern

Spring. Warming water pulls largemouth toward shallow, protected areas where they stage and spawn; the quickest-warming pockets lead.

Summer. Heat pushes fish off the shallows toward depth and shade; work the cooler ends of the day.

Fall. As water cools, forage and bass return toward shallower water; movement is wide, so covering water pays.

Winter. Cold water settles fish deep and slow; patience and a subtle presentation are the more dependable choice.

Key structure

  • Creek and cove mouths that funnel fish and bait
  • Weed edges and the clean lines along them
  • Inside turns where a bank changes angle
  • Submerged wood, brush, and laydown cover

The calendar decides which of these is worth time on a given day.

Forage

Forage on Spruce Run Reservoir pulls largemouth between cover and the open water that schools of bait drift through.

Access

Spruce Run Reservoir has public access points; conditions and water levels change, so verify locally before launching.

Regulations

Check current state and local regulations before fishing; limits and seasons can change.

§ 05Sources & field guides

Field guides

Data & references

  • Today's conditions — Open-Meteo, refreshed every ~15 min
  • Moon phase — local astronomical calculation, no external API
  • Lake area, depth, structure — Identity, surface area, coordinates and county/state are from the ProjectD canonical waterbody index (snapshot conus-20260518-v1, group gnis:00880828). Maximum depth and regulation links were not available from an acceptable source and are intentionally omitted.
  • Regulations — verify current state and local regulations before fishing

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