US River Monsters (Real Species)
US River Monsters (Real Species)
You don’t need to leave the US to find monsters.
FISHYAF
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Top 10 Species
Meet the ten species that earned their spot on this list. Click any species to deep dive and learn more.
1
Alligator Gar
Verified
World Record
279 lb 0 oz
Art Weston / 2011
Rio Grande, Texas
Art Weston / 2011
Rio Grande, Texas
Signature Fact
Their eggs are poisonous to humans, even after cooking-roe tacos are a very bad idea.
2
Blue Catfish
Verified
World Record
143 lb 0 oz
Richard Nicholas Anderson / 2011
Buggs Island Lake, Virginia
Richard Nicholas Anderson / 2011
Buggs Island Lake, Virginia
Signature Fact
World record: 143 pounds-hook one and the first surge can shove a jon boat sideways.
3
Flathead
Verified
World Record
123 lb 0 oz
Ken Paulie / 1998
Elk City Reservoir, Kansas
Ken Paulie / 1998
Elk City Reservoir, Kansas
Signature Fact
The IGFA all-tackle record flathead weighed 123 lb 9 oz-basically a kindergarten kid with whiskers.
4
White Sturgeon
Learn More Here Verified Catch
World Record
468lbs 0oz
oey Pallotta III / 1983
San Pablo Bay, California, USA.
oey Pallotta III / 1983
San Pablo Bay, California, USA.
Signature Fact
Eleven‑foot white sturgeon sometimes launch completely out of the water-prehistoric armor doing full‑on tarpon acrobatics.
5
Lake Sturgeon
Learn More Here Verified Catch
World Record
310 lb 0 oz
Albert A. Wigen / 1953
Lake of the Woods, Ontario
Albert A. Wigen / 1953
Lake of the Woods, Ontario
Signature Fact
Females can live past 100 and may spawn only every 4-9 years-your PB might be a century-old grandma.
6
American Paddlefish
Learn More Here Verified Catch
World Record
144 lb 8 oz
Clinton Boldridge / 1916
Atchison County, Kansas
Clinton Boldridge / 1916
Atchison County, Kansas
Signature Fact
That giant paddle is an electric antenna, homing on zooplankton by sensing microvolt fields in murky water.
7
Muskellunge
Learn More Here Verified Catch
World Record
67 lb 8 oz
Cal Johnson / 1949
Lake Court Oreilles, Wisconsin
Cal Johnson / 1949
Lake Court Oreilles, Wisconsin
Signature Fact
A shocking number of hookups explode inches from the net during boatside figure‑eights-pure cardiac fishing.
8
Striped Bass (Striper)
Learn More Here Verified Catch
World Record
81 lb 14 oz
Gregory Myerson / 2011
Long Island Sound, Connecticut
Gregory Myerson / 2011
Long Island Sound, Connecticut
Signature Fact
Their eggs must stay drifting for about 48 hours-sink once, and the entire spawn suffocates.
9
Longnose Gar
Learn More Here Verified Catch
World Record
43 lb 0 oz
Rock Shaw / 2017
Trinity River, Texas
Rock Shaw / 2017
Trinity River, Texas
Signature Fact
Many gar specialists use hookless, frayed-rope lures-their needle teeth tangle like Velcro and won't let go.
10
Common Carp
Learn More Here Verified Catch
World Record
75 lb 11 oz
Colin Smith / 2013
Lac de Saint-Cassien, France
Colin Smith / 2013
Lac de Saint-Cassien, France
Signature Fact
They remember being hooked for over a year, dodging that same rig and flavor like seasoned veterans.
FAQs
What are the biggest river monsters in the US?
Alligator gar, blue catfish, flathead catfish, and white-sturgeon are among the largest and most powerful river fish in the United States.
Where can you catch river monsters in the US?
Major river systems like the Mississippi, Missouri, Columbia, and Ohio Rivers are known for producing these giants.
Are US river monsters dangerous?
Most are not dangerous to humans, but their size and power make them challenging—and sometimes risky—to handle.
Can anglers target these fish?
Yes. Many are prized targets that require heavy tackle, patience, and specialized techniques.
What is the biggest river fish in the US?
The white white-sturgeon is one of the largest freshwater fish in North America, capable of reaching enormous sizes.
