Rapjohn Lake Depth Map & Fishing Spots (WA)

Hatch outlook

Callibaetis (Speckled Dun)Active window

Typical here: Aug 15 – Sep 15 · the smaller fall brood

nymphthe hours before the midday emergence — nymphs rise off the weed tops in a vertical zigzag that can take hours — sources split between slow 2–4 inch strips with long pauses and a quicker steady retrieve; carry both speeds
dunmidday, roughly 11am into early afternoon
spinnermid-to-late-morning falls

Trout browse the weed-bed edges knocking nymphs loose, then cruise the flats sipping duns at midday — the marquee western lake mayfly.

The midday emergence puts cruisers over weed flats in under 20 ft: a casting bubble with a #14 Callibaetis nymph retrieved dead-slow with pauses is the honest match. Between hatch hours, small spoons and #1 inline spinners along the weed edges and drop-offs pick off the same fish.

The event happens over weed flats and weed-bed edges in 20 ft of water or less

Chironomids (stillwater midges)Active window

Typical here: May 1 – Oct 31

nymphearly morning, start of the day — fish the bloodworm ON the bottom — 4–6 inches off the mud before the emergence starts
pupathe cool morning hours are prime — as the emergence builds, slide the pupa up to 12–15 inches off bottom under the indicator; a little wind chop does the jigging

Concentrates by DEPTH BAND and mud type, not a fixed spot: roughly 20–25 ft in spring, deeper midsummer, in against the feeder creeks in summer heat, 5–25 ft in fall. Match the band.

This one translates almost perfectly: a slip float with a 1/64–1/100 oz midge-pattern jig set 4–15 inches off bottom over a mud flat, dead-sticked with the chop doing the work. Depth control is everything — no moving lure imitates a hanging pupa; the float rig IS the technique.

The event happens over open mud flats alongside weedlines, channels and basin edges; feeder-creek mouths in summer heat

Water boatman fall flightsActive window

Typical here: Aug 25 – Oct 10 · peaks on crisp, bright fall days after the first cold snap

adultmiddday-ish on calm, sunny fall days — the fishable moment is the splashdown: boatmen dive in headfirst trailing an air bubble and make repeated trips back to the surface — a fly or lure that dives nose-first on the drop imitates exactly this

Takes are seldom subtle — trout ravage boatmen as they hit the water and during their subsurface runs.

Tailor-made for hardware: a small 1/16 oz silver-bellied spoon or jig cast AT the rings of a splashdown sinks headfirst exactly like the natural — twitch-pause it back through the top few feet. On flight days fan-cast the shallow weed margins.

The event happens over near-shore shallows, weed beds and shoal margins on calm sunny fall afternoons

Grasshoppers (east-side summer)Active window

Typical here: Jun 15 – Sep 30

adultall day in high summer, best when afternoon wind knocks bugs onto the water

Pulls fish to the windward grassy banks and edges for months — fish the bank the wind blows ONTO.

The friendliest crossover of the summer: on lakes, drift the windward bank with a bubble-and-foam-hopper — the bubble's splash doesn't hurt a hopper presentation. On rivers, the same rig dead-drifted along the undercut grass banks, or small gold spinners under the banks between rises.

The event happens over grassy banks, undercut edges and windward shorelines

Next on this water

Damselfly migration · forageMay 15 – Jul 31 · in ~9 months

Recommendations come from depth structure and seasonal species behavior. Treat them as a starting point, not a guarantee. Contours here are interpolated from real agency depth surveys (state DNR / USACE). Never use for navigation. Always check local regulations.

Loading depth chart…

Recent catches at Rapjohn Lake

Shared by DepthScout anglers. Exact spots stay private, always.

No shared catches here yet — be the first.Log a catch from the map above and share it to put Rapjohn Lake on the board.

Fishing Rapjohn Lake: what the data says

48-acre lake near Pierce County. The lake tops out around 18 ft. The depth chart is built from real state fisheries GPS surveys, so the humps, channels and drop-offs you see are measured, not guessed. Every species below gets its seasonal read from the same numbers driving the chart.

Traced from the shoreline, Rapjohn Lake runs 48 acres with 1 miles of edge. A shoreline index of 1.1 says round and simple: fish relate to depth changes here, not shoreline features. 87% of the surface is littoral (under ~15 ft) — cover, weeds and forage water. End to end it runs roughly 0.4 mi, about 0.2 mi across. The water lies in Pierce County. For a second option, Silver Lake lies 2 mi southwest.

Brown Trout fishing at Rapjohn Lake

Spring brown trout on Rapjohn Lake hold shallow, usually 2 to 18 ft. Depth-wise the year is flat: 5 to 18 ft in summer, 3 to 18 ft once it turns cold. Put Break off the point first on the milk run — a drop-off near 15 ft that grades prime for summer. The feeding windows run after dark and early morning. The summer box starts with a spoon at the thermocline or a deep stickbait (night).

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 18 ft	dawn & dusk	Main-lake point (1 ft)	Stickbait off planer boards (shallow), Small spoon along mud lines
Summer	5 to 18 ft	night & dawn	Break off the point (15 ft)	Spoon at the thermocline, Deep stickbait (night)
Fall	3 to 18 ft	dusk & dawn	Main-lake point (1 ft)	Jerkbait over gravel, Casting spoon
Winter	3 to 18 ft	dawn	Break off the point (15 ft)	Jigging spoon, Small stickbait (slow)

Rainbow Trout fishing at Rapjohn Lake

Start shallow in spring: rainbow trout sit in 5 to 18 ft that time of year. They don't go far with the seasons — 5 to 18 ft covers summer, 4 to 18 ft covers winter. Top water on the chart: Break off the point, a drop-off in the 15 ft range, prime in winter. Fish it in early morning and the evening and you'll meet the bite. Throw a dodger + spoon (deep troll) or a flutter spoon until the fish tell you otherwise.

Season	Depth	Best window	Start at	Go-to baits
Spring	5 to 18 ft	dawn & dusk	Break off the point (15 ft)	Inline spinner (silver), Small spoon
Summer	5 to 18 ft	dawn & dusk	Break off the point (15 ft)	Dodger + spoon (deep troll), Flutter spoon
Fall	5 to 18 ft	dawn & dusk	Break off the point (15 ft)	Casting spoon, Jerkbait over shoals
Winter	4 to 18 ft	dawn	Break off the point (15 ft)	Jigging spoon, Tube jig (white)

Notable structure

Structure-wise the chart holds 5 features, led in depth by Deep basin at roughly 18 ft.

Deep basin: deep basin, around 18 ft
Break off the point: drop-off, around 15 ft
Main-lake point: point, around 1 ft
Shallow bay flat: weed flat, around 1 ft
Back-bay flat: weed flat, around 1 ft

Public access & boat ramps

Rapjohn Lake — ramp (gravel)

Access data: Washington WDFW — Water Access Sites. Confirm conditions and fees locally before you launch.

Rapjohn Lake stocking report

Date	Species	Count	Size
May 26	Rainbow trout	400	—
Apr 2	Rainbow trout	4,000	—

Source: WDFW fish-stocking reports, retrieved 2026-08-18.

Rapjohn Lake fishing regulations

Season dates, license requirements, and size and bag limits for Washington waters are set by the Washington Department of Fish and Wildlife — and special regulations can apply to Rapjohn Lake specifically, so confirm the current rules before you fish.

Check the official Washington fishing regulations →

Common questions

How deep is Rapjohn Lake?

Rapjohn Lake is about 18 ft (5 m) deep at its deepest point. The depth chart here comes from real state fisheries GPS surveys, so the contours reflect measured depths.

What fish are in Rapjohn Lake?

Anglers target brown trout, rainbow trout on Rapjohn Lake.

Where is the best fishing spot on Rapjohn Lake?

Break off the point is the top-rated area: a drop-off in about 15 ft of water that rates prime for brown trout in summer. Open the map above to see every rated spot for each species and season.

When is the best time to fish Rapjohn Lake?

For brown trout, the summer bite is best in after dark and early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.

Is Rapjohn Lake stocked with fish?

Yes — per WDFW fish-stocking reports records, Rapjohn Lake was most recently stocked May 26 with 400 rainbow trout. The full stocking history is listed above.

What are the fishing regulations for Rapjohn Lake?

Fishing on Rapjohn Lake is regulated by the Washington Department of Fish and Wildlife. Check the official Washington regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.

Nearby waters

Silver Lake 2 mi · Ohop Lake 3 mi · Clear Lake 4 mi · Tanwax Lake 5 mi · Benbow Lakes 6 mi · Harts Lake 6 mi · Elbow Lake 7 mi · Lake Kapowsin 7 mi · Clear Lake 8 mi · Lake Lawrence 11 mi · Mineral Lake 15 mi · Spanaway Lake 15 mi

See how Rapjohn Lake stacks up: best rainbow trout lakes in Washington · best brown trout lakes in Washington

More water nearby: Pierce County fishing maps (18 charts). Browse all Washington fishing maps or see every water on DepthScout. Bathymetry credit: state fisheries survey programs. How we build these maps. Fish here with a sonar unit that logs? Send us your depth data and we'll improve this chart, credited to you. For fishing guidance only, never navigation.