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Ohio

Tappan Lake

Roughly 2,136 acres of Ohio water in Harrison County, Tappan Lake is a seasonal largemouth lake to read by cover and weather.

Surface
2,136acres
Primary species
Largemouth
§ 01Today on the water · Tappan Lakeloading…
Air temp
Barometric
Wind
Moon
Waxing Crescent
day 5.0 · 26% lit

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§ 03Next 3 daysloading…

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§ 04Field notesOhio

Where it is

Tappan Lake lies in Harrison County, Ohio, and runs to roughly 2,136 acres. Largemouth work shallow-to-deep and back as conditions change through the year.

Seasonal pattern

Spring. Early warming sends largemouth into the shallows to stage and spawn, the calmest sun-fed water leading the move.

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

Fall. Dropping temperatures pull bait and largemouth back toward shallow water in a wider, roaming feed.

Winter. Largemouth go deep and sluggish in cold water, so a slow, methodical approach is the safer bet.

Key structure

  • Shoreline cover near quick depth changes
  • Shade lines and overhead cover in the warm months
  • Submerged wood, brush, and laydown cover
  • Channel edges and the breaks beside them

Season first, spot second — that order holds here.

Forage

The forage base on Tappan Lake is baitfish and panfish; largemouth stay with those schools as they shift.

Access

Access is public around Tappan Lake; ramp and launch status changes with water levels, so confirm locally first.

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:01046947). Maximum depth and regulation links were not available from an acceptable source and are intentionally omitted.
    • Regulations — verify current rules with before fishing

    Last revised · Back to Lake Guide