Rock Lake Depth Map & Fishing Spots (CA)

Skip to interactive depth chart

Lake depth chart

Rock Lake, CA

Max 15 ft

Today's read

Where to start

Callibaetis (Speckled Dun) window is on — see the hatch outlook

Hatch outlook

Callibaetis (Speckled Dun)Active window

Typical here: May 1 – Oct 1 · multi-brood; a documented midsummer lull when surface temps push fish deep

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: Apr 25 – Oct 31 · end of April to the end of October at Crowley — the main food source for the entire season

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

Grasshoppers (east-side summer)Active window

Typical here: Jul 1 – Sep 30 · the East Walker and Upper Owens terrestrial program

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 25 – Aug 31 · in ~9 months

Recommendations come from depth structure and seasonal species behavior. Treat them as a starting point, not a guarantee. Contours on this water are approximations. Never use for navigation. Always check local regulations.

Loading depth chart…

Recent catches at Rock 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 Rock Lake on the board.

Fishing Rock Lake: what the data says

17-acre lake near Plumas County. The lake tops out around 15 ft. The contours are modeled from the water's real shoreline and maximum depth. Treat them as a rough guide, and never use them for navigation. What the data behind the map says about each species, season by season:

The outline encloses 16 acres, worked by 0.7 miles of shoreline. Nearly circular (index 1.3), so the story is the bottom, not the bank. Plumas County claims this one. Jamison Lake sits 0 mi south — the closest neighbouring chart.

Brook Trout fishing at Rock Lake

When the water first warms, brook trout slide up into 2 to 15 ft. There's no big seasonal slide here — summer means 5 to 15 ft, winter 2 to 15 ft. Start at Deep basin. It's a deep basin holding about 13 ft of water and rates prime come summer. The feeding windows run early morning and the evening. Keep a small spoon fished deep or a trolled lake-clear wobbler + worm rigged through the warm months.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 15 ft	dawn & dusk	Main-lake point (8 ft)	Small inline spinner (gold), Tiny spoon
Summer	5 to 15 ft	dawn & dusk	Deep basin (13 ft)	Small spoon fished deep, Trolled lake-clear wobbler + worm
Fall	2 to 15 ft	midday & dawn	Main-lake point (8 ft)	Small spoon (orange), Spinner
Winter	2 to 15 ft	dawn	Deep basin (13 ft)	Small jigging spoon, Tungsten jig + plastic

Brown Trout fishing at Rock Lake

Start shallow in spring: brown trout sit in 2 to 15 ft that time of year. They don't go far with the seasons — 5 to 15 ft covers summer, 2 to 15 ft covers winter. The spot to know is Break off the point, a drop-off in about 7 ft of water that rates prime for brown trout in summer. Warm-month bites cluster around after dark and early morning. Throw a spoon at the thermocline or a deep stickbait (night) until the fish tell you otherwise.

Season	Depth	Best window	Start at	Go-to baits
Spring	2 to 15 ft	dawn & dusk	Main-lake point (8 ft)	Stickbait off planer boards (shallow), Small spoon along mud lines
Summer	5 to 15 ft	night & dawn	Break off the point (7 ft)	Spoon at the thermocline, Deep stickbait (night)
Fall	3 to 15 ft	dusk & dawn	Main-lake point (8 ft)	Jerkbait over gravel, Casting spoon
Winter	2 to 15 ft	dawn	Break off the point (7 ft)	Jigging spoon, Small stickbait (slow)

Notable structure

Structure-wise the chart holds 3 features, led in depth by Deep basin at roughly 13 ft.

Deep basin: deep basin, around 13 ft
Main-lake point: point, around 8 ft
Break off the point: drop-off, around 7 ft

Rock Lake fishing regulations

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

Check the official California fishing regulations →

Common questions

How deep is Rock Lake?

Rock Lake is about 15 ft (5 m) deep at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.

What fish are in Rock Lake?

Anglers target brook trout, brown trout on Rock Lake.

Where is the best fishing spot on Rock Lake?

Break off the point is the top-rated area: a drop-off in about 7 ft of water that rates prime for brown trout in summer. Every other rated spot, per species and season, is on the map above.

When is the best time to fish Rock Lake?

For brook 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 Lake?

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

Nearby waters

Jamison Lake 0 mi · Grass Lake 1 mi · Eureka Lake 3 mi · Salmon Lake, Upper 5 mi · Packer Lake 7 mi · Sardine Lake, Upper 8 mi · Lake Davis 17 mi · Weaver Lake 17 mi · Sawmill Lake 20 mi · Lower Rock Lake 20 mi · Culbertson Lake 21 mi · Lindsey Lakes 21 mi

See how Rock Lake stacks up: best brown trout lakes in California · best brook trout lakes in California

More water nearby: Plumas County fishing maps (14 charts). Browse all California fishing maps or see every water on DepthScout. 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.