Rock Creek Reservoir Depth Map & Fishing Spots (OR)

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.

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Recent catches at Rock Creek Reservoir

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

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Fishing Rock Creek Reservoir: what the data says

84-acre reservoir near Wamic. The lake tops out around 32 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.

The outline encloses 78 acres, worked by 1.8 miles of shoreline. Its 1.4 shoreline index means few bank features; the contours below do the pattern work. The shallow band under 15 ft claims about 65% of the surface — that's where the groceries are. End to end it runs roughly 0.5 mi, about 0.5 mi across. It sits in Wasco County. Its nearest charted neighbour, Deschutes River (Lower), is 22 mi to the southeast.

Rainbow Trout fishing at Rock Creek Reservoir

When the water first warms, rainbow trout slide up into 5 to 20 ft. By summer they slide out to 8 to 30 ft, and by winter most fish are in 6 to 32 ft. If you only fish one area, make it Break off the point: a drop-off around 10 ft that scores prime in winter. In summer the feeding windows fall in early morning and the evening. Keep a dodger + spoon (deep troll) or a flutter spoon rigged through the warm months.

Season	Depth	Best window	Start at	Go-to baits
Spring	5 to 20 ft	dawn & dusk	Secondary point (6 ft)	Inline spinner (silver), Small spoon
Summer	8 to 30 ft	dawn & dusk	Break off the point (10 ft)	Dodger + spoon (deep troll), Flutter spoon
Fall	9 to 32 ft	dawn & dusk	Break off the point (10 ft)	Casting spoon, Jerkbait over shoals
Winter	6 to 32 ft	dawn	Break off the point (10 ft)	Jigging spoon, Tube jig (white)

Largemouth Bass fishing at Rock Creek Reservoir

Spring largemouth bass on Rock Creek Reservoir hold shallow, usually 2 to 10 ft. They move out to 8 to 20 ft in summer and finish the year down in 10 to 32 ft. Put Shallow bay flat first on the milk run — a weed flat near 2 ft that grades prime for spring. The feeding windows run early morning and the evening. The summer box starts with a texas-rigged 10" worm or a deep-diving crankbait.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 10 ft	dawn & dusk	Shallow bay flat (2 ft)	Spinnerbait, Chatterbait
Summer	8 to 20 ft	dawn & dusk	Break off the point (10 ft)	Texas-rigged 10" worm, Deep-diving crankbait
Fall	4 to 15 ft	midday & dawn	Main-lake point (4 ft)	Squarebill crankbait (shad), Spinnerbait
Winter	10 to 32 ft	midday	Break off the point (10 ft)	Blade bait, Jigging spoon

Notable structure

Count 6 structure marks on this chart. The deepest, Deep basin, sits near 32 ft.

Deep basin: deep basin, around 32 ft
Break off the point: drop-off, around 10 ft
Secondary point: point, around 6 ft
Main-lake point: point, around 4 ft
Shallow bay flat: weed flat, around 2 ft
Back-bay flat: weed flat, around 2 ft

Public access & boat ramps

Rock Creek Reservoir CG — ramp

Access data: Oregon State Marine Board — Boating Access. Confirm conditions and fees locally before you launch.

Rock Creek Reservoir fishing regulations

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

Check the official Oregon fishing regulations →

Common questions

How deep is Rock Creek Reservoir?

Rock Creek Reservoir is about 32 ft (10 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 Rock Creek Reservoir?

Anglers target rainbow trout, largemouth bass on Rock Creek Reservoir.

Where is the best fishing spot on Rock Creek Reservoir?

Shallow bay flat is the top-rated area: a weed flat in about 2 ft of water that rates prime for largemouth bass in spring. Scroll up to the map for the complete spot list by species and season.

When is the best time to fish Rock Creek Reservoir?

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.

What are the fishing regulations for Rock Creek Reservoir?

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

Nearby waters

Deschutes River (Lower) 22 mi · Metolius River 47 mi · Haystack Reservoir 52 mi · Round Lake 56 mi, WA · Lacamas Lake 57 mi, WA · John Day River 63 mi · Big Lake 63 mi · Clear Lake 66 mi · Battle Ground Lake 67 mi, WA · Council Lake 73 mi, WA · Merrill Lake 75 mi, WA · Horseshoe Lake 81 mi, WA

See how Rock Creek Reservoir stacks up: best largemouth bass lakes in Oregon · best rainbow trout lakes in Oregon

Browse all Oregon 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.