Cascade Resevoir, January 2004
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American Falls Reservoir

Photo by Emily Wright

American Falls Reservoir, on the Snake River, sports abundant springs that provide cool water during the hot summer months. These springs also provide oxygenated water during winter. Lots of great fishing can be found here year around. There is even good ice fishing during cold winters. American is open to fishing year round, with best fishing in the spring and fall. As the summer rolls on the algae growth blooms. Water clarity varies with algae growth and sediments stirred up by winds. American Falls is a shallow lake, and warms in summer.

Size - 56,000 acres. This is Idaho's largest reservoir when it is at full pool. Location near Aberdeen, Idaho, on the Snake River

The Fish

Rainbow, Cutthroat trout, Carp, Suckers, Utah Chub, Perch, Crappie, Bullheads, and lots of minnows.

Bank fishermen usually fish with a worm. Keep it off the bottom.

Boaters cast into the willows with minnow imitations.


Fishing reports for American Falls


Dec 01 2007
Name: Bob

Water Temp: 41 surface

We caught 5 trout 13"-16" and 6 kokanee 13" using wedding rings. Fished the top 8ft. of water. Very cold, 18 at start to 32 when we left. Partly cloudy and lite breeze.


May 24 2007
Name: Cecil
Fishing Report:
Recently restocked with rainbows and browns. Caught and released close to 100 fish in three days, some nice browns 16 to 18 inches. Since fish were recently stocked they did not taste very well (had to try fresh fish one night). Best bait was a rooster tail. Fished from pontoon boat, don't expect to use boat docks this year as lake is refilling real slow due to low snow pack.


March 31 2007
Name: Jesse Galego
Water Temp: 41---43
Fishing Report:

Caught a nice rainbow off the shore about a 1/4 mile from boat launch. Hooked a few small mouth but none big enough to be of any merit. Weather was slightly warm and bow was caught around 5pm. If you are fishing this area have patience and cast out as far as you can, fish start heading in to shore around 5 or 6 so those are awesome times to be out there.

June 6, 2005
I have not heard much about the fishing in American Falls Res. Today is Sat June 4 and today there is a bass tournament. There is a fish derby on June 12, $500.00 first prize, $200.00 second prize, and $100.00 third prize. And I think the entry fee is $10.00
American Falls is in great shape with lots of water. I will go out today and see if anyone is catching any fish and let you know. Below the dam they are catching fish from the boats and on the banks fishing is great!!
Doug Hill
Am. Falls, ID

June 24, 2005
From: Doug Hill
The winner of the fishing tournement caught an 8 lb. fish and won $500. They are catching some nice trout in the lake.

November 6, 2005
American Falls reservoir will have much more water reserved this fall allowing boat access, better spawning conditions for bass, and just better fishing conditions. American will retain about 12% capacity instead of 5%.


April 2 2006
Report from: TROUTMAN
Lake: American Falls Reservoir
Water Temp: 39
Fishing Report:
ARRIVED AT 8:00 AM FISHED TILL 2:00. SLOWER IN THE MORNING AND PICKED UP IN THE AFTERNOON. CAUGHT 3 BEFORE NOON AND 10 AFTER NOON. USED SPINNERS, JIGS, AND WORMS WITH A LITTLE SUCCESS ON ALL THREE. WINDY CONDTIONS MADE IT HARD TO FISH AND MURKY CONDITIONS. 1 KOKE AND 12 TROUT. MOST TROUT BETWEEN 12-15 INCHES KOKE 14 1/2"

January 7 2007
Name: Bill S
Water Temp: Icy
Fishing Report:
Went out for Sturgon this weekend. It was very cold at night, super slow, no bites. But did catch a huge trout after 3 hours. It fed 5 of us and was floppin on the barby. I don't know about you but I'm waiting for warmer nights.
Have fun

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