Jameson 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 Jameson 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 Jameson Lake on the board.

Fishing Jameson Lake: what the data says

471-acre lake near Douglas County. The lake tops out around 55 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. What the data behind the map says about each species, season by season:

Jameson Lake maps at 471 acres behind 3.8 miles of shoreline. Its 1.3 shoreline index means few bank features; the contours below do the pattern work. About 45% of the surface sits shallower than 15 ft — that's the weed-and-bait zone. Call it 1.6 mi long by 0.6 mi wide at the broadest reach. It sits in Douglas County. Grimes Lake sits 3 mi northeast — the closest neighbouring chart.

Rainbow Trout fishing at Jameson Lake

Come spring, look for rainbow trout tight to the bank in 5 to 20 ft. Expect a summer slide to 8 to 30 ft, then a winter hold in 8 to 40 ft. Start at Creek inflow. It's an inflow / creek mouth holding about 14 ft of water and rates prime come spring. Prime time lands in early morning and the evening. A dodger + spoon (deep troll) or a flutter spoon is the honest summer answer here.

Season	Depth	Best window	Start at	Go-to baits
Spring	5 to 20 ft	dawn & dusk	Creek inflow (14 ft)	Inline spinner (silver), Small spoon
Summer	8 to 30 ft	dawn & dusk	Creek inflow (14 ft)	Dodger + spoon (deep troll), Flutter spoon
Fall	10 to 35 ft	dawn & dusk	Main-lake point (15 ft)	Casting spoon, Jerkbait over shoals
Winter	8 to 40 ft	dawn	Break off the point (28 ft)	Jigging spoon, Tube jig (white)

Notable structure

Jameson Lake carries 8 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 55 ft down.

Deep basin: deep basin, around 55 ft
Break off the point: drop-off, around 28 ft
Main-lake point: point, around 15 ft
Shallow bay flat: weed flat, around 14 ft
Creek inflow: inflow / creek mouth, around 14 ft
Old creek channel: creek channel, around 14 ft
Secondary point: point, around 8 ft
Back-bay flat: weed flat, around 3 ft

Public access & boat ramps

Jameson Lake — ramp (concrete, gravel)

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

Jameson Lake stocking report

Date	Species	Count	Size
Jun 1	Rainbow trout	52,400	—
Apr 29	Rainbow trout	57,600	—
Mar 23	Rainbow trout	400	—
Mar 23	Rainbow trout	3,070	—
Mar 20	Rainbow trout	3,430	—
Sep 29, 2025	Rainbow trout	3,500	—

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

Jameson 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 Jameson Lake specifically, so confirm the current rules before you fish.

Check the official Washington fishing regulations →

Common questions

How deep is Jameson Lake?

Jameson Lake is about 55 ft (17 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 Jameson Lake?

Anglers target rainbow trout on Jameson Lake.

Where is the best fishing spot on Jameson Lake?

Creek inflow is the top-rated area: an inflow / creek mouth in about 14 ft of water that rates prime for rainbow trout in spring. Scroll up to the map for the complete spot list by species and season.

When is the best time to fish Jameson Lake?

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

Is Jameson Lake stocked with fish?

Yes — per WDFW fish-stocking reports records, Jameson Lake was most recently stocked Jun 1 with 52,400 rainbow trout. The full stocking history is listed above.

What are the fishing regulations for Jameson Lake?

Fishing on Jameson 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

Grimes Lake 3 mi · Blue Lake 12 mi · Park Lake 12 mi · Alkali Lake 13 mi · Deep Lake 16 mi · Soap Lake 20 mi · Thompson Lake 25 mi · Alta Lake 27 mi · Roses Lake 29 mi · Wapato Lake 30 mi · Crater Lake 34 mi · Meadow Lake 36 mi

See how Jameson Lake stacks up: best rainbow trout lakes in Washington

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.