Bumping 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 Bumping 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 Bumping Lake on the board.

Fishing Bumping Lake: what the data says

1,263-acre lake near Yakima County. The lake tops out around 89 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. Below is the species-by-species picture, pulled from the same data the map uses.

Cutthroat Trout fishing at Bumping Lake

Spring cutthroat trout on Bumping Lake hold shallow, usually 3 to 15 ft. They move out to 10 to 35 ft in summer and finish the year down in 10 to 40 ft. Put Boulder Creek inflow first on the milk run — an inflow / creek mouth near 2 ft that grades prime for spring. The feeding windows run early morning and the evening. The summer box starts with a trolled spoon (small) or an inline spinner.

Season	Depth	Best window	Start at	Go-to baits
Spring	3 to 15 ft	dawn & dusk	Boulder Creek inflow (2 ft)	Inline spinner (silver/gold), Small spoon
Summer	10 to 35 ft	dawn & dusk	Deep Creek inflow (16 ft)	Trolled spoon (small), Inline spinner
Fall	5 to 25 ft	dawn & dusk	Deep Creek inflow (16 ft)	Casting spoon, Inline spinner
Winter	10 to 40 ft	dawn	Deep Creek inflow (16 ft)	Small jigging spoon, Marabou jig

Rainbow Trout fishing at Bumping Lake

Start shallow in spring: rainbow trout sit in 5 to 20 ft that time of year. Warm water sends them out to 8 to 30 ft; cold water stacks them in 8 to 40 ft. Top water on the chart: Deep Creek inflow, an inflow / creek mouth in the 16 ft range, prime in spring. 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 20 ft	dawn & dusk	Deep Creek inflow (16 ft)	Inline spinner (silver), Small spoon
Summer	8 to 30 ft	dawn & dusk	Deep Creek inflow (16 ft)	Dodger + spoon (deep troll), Flutter spoon
Fall	10 to 35 ft	dawn & dusk	Deep Creek inflow (16 ft)	Casting spoon, Jerkbait over shoals
Winter	8 to 40 ft	dawn	Deep Creek inflow (16 ft)	Jigging spoon, Tube jig (white)

Notable structure

Bumping Lake carries 9 mapped structure features, topping out (or rather bottoming out) at Deep basin, about 88 ft down.

Deep basin: deep basin, around 88 ft
Break off the point: drop-off, around 56 ft
Deep Creek inflow: inflow / creek mouth, around 16 ft
Boulder Creek inflow: inflow / creek mouth, around 2 ft
Old creek channel: creek channel, around 2 ft
Main-lake point: point, around 1 ft
Secondary 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

Boat launch — ramp

Access data: OpenStreetMap contributors (ODbL) — community-mapped launches. Confirm conditions and fees locally before you launch.

Bumping Lake stocking report

Date	Species	Count	Size
May 4	Rainbow trout	21,824	—

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

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

Check the official Washington fishing regulations →

Common questions

How deep is Bumping Lake?

Bumping Lake is about 89 ft (27 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 Bumping Lake?

Anglers target cutthroat trout, rainbow trout on Bumping Lake.

Where is the best fishing spot on Bumping Lake?

Deep Creek inflow is the top-rated area: an inflow / creek mouth in about 16 ft of water that rates prime for rainbow trout in spring. The interactive chart above rates every spot for each species and season.

When is the best time to fish Bumping Lake?

For cutthroat 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 Bumping Lake stocked with fish?

Yes — per WDFW fish-stocking reports records, Bumping Lake was most recently stocked May 4 with 21,824 rainbow trout. The full stocking history is listed above.

What are the fishing regulations for Bumping Lake?

Fishing on Bumping 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

Packwood Lake 22 mi · Wenas Lake 31 mi · Cle Elum Lake 33 mi · Yakima River 40 mi · Deep Lake 41 mi · Mineral Lake 41 mi · Lake Kapowsin 43 mi · Council Lake 43 mi · Benbow Lakes 44 mi · Ohop Lake 45 mi · Tanwax Lake 45 mi · Clear Lake 45 mi

See how Bumping Lake stacks up: best rainbow trout lakes in Washington · best cutthroat 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.