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Mammoth Pool Reservoir Fishing Report | June 23, 2025

Report by Capt. Cal Kellogg
Cal Kellogg is a veteran Northern California trout troller, outdoor writer, and Catch America pro-staff captain. Shop Cal Kellogg's tackle.
What is working right now

Trout fishing was slow at Mammoth Pool Reservoir the week of June 23, 2025, with about six fish on Uncle Larry's spinners tipped with worms. Nearby Collins Lake gave a slow to fair trout bite on Trigger Spoons and Trout Trix Minnows, plus lightning trout to about 5 pounds and good potluck action for panfish, bass, and catfish.

How is the fishing at Mammoth Pool Reservoir?

Slow this trip despite the lake's reputation for good action. Cal Kellogg landed about six trout, with Uncle Larry's spinners tipped with worms the hot ticket. It is a beautiful Sierra National Forest lake that fishes hit or miss depending on timing, so cover water thoroughly.

What is biting at Collins Lake right now?

Trout action is slow to fair, with fish coming on Trigger Spoons and Trout Trix Minnows. Cal also picked up bluegill, bass, and catfish, plus lightning trout up to about 5 pounds. It is a great spot for mixed potluck fishing right now.

What lures are working at Mammoth Pool and Collins?

At Mammoth Pool, Uncle Larry's spinners tipped with worms produced the fish. At Collins Lake, Trigger Spoons and Trout Trix Minnows are drawing trout, and soft plastics or spoons work well for the aggressive lightning trout.

How should I fish Folsom Lake for landlocked kings?

Cal discussed downrigger fishing for landlocked kings at Folsom. Focus on precise depth control with downriggers and small shad-pattern lures. No specific Folsom conditions were reported on this trip, since it came up as an instructional topic rather than a fished venue.

What is the outlook for these Sierra lakes?

Mix trolling for trout with targeting warm-water species for a productive day. Expect hit or miss timing at Mammoth Pool. Collins Lake is a good bet if you want to troll for trout for a while, then target panfish, bass, and catfish.

Watch the full report

From the report (Capt. Cal Kellogg): Started out the week at Mammoth Pool Reservoir in the Sierra National Forest. The trout fishing at times is really good there, but it was really slow when we were there. We got about six fish. Uncle Larry's spinners teamed with worms was the hot ticket for us. Today, I'm out on Collins Lake, getting fish on trigger spoons and Trout Trix minnows.

Mammoth Pool Reservoir June 23, 2025 FAQ

What depth are the trout at Mammoth Pool Reservoir?

A specific depth was not specified in this report. The bite was slow, so cover water and work your spinners thoroughly.

How big are the lightning trout at Collins Lake?

Cal reported lightning trout up to about 5 pounds over the week. They are aggressive, so try spoons or soft plastics.

What baits work at Mammoth Pool Reservoir?

Uncle Larry's spinners tipped with worms produced about six fish on this slow trip.

What else is biting at Collins Lake?

Along with trout, bluegill, bass, and catfish are available for potluck fishing.

How do you target landlocked kings at Folsom Lake?

Use downriggers for precise depth control and small shad-pattern lures. No specific Folsom conditions were reported in this trip.

Who guides these lakes for Catch America?

Capt. Cal Kellogg.

Tags: cal-kellogg mammoth-pool-reservoir rainbow-trout
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Sacramento River Fishing Report | August 1, 2026

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San Luis Reservoir Fishing Report | July 27, 2026

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