Within Idaho Monsters

Monster, Sturgeon or Submarine Wake?

Lake Pend Oreille's depth, Navy testing and sturgeon rumours make its paddler legend one of Idaho's strangest water mysteries.

On this page

  • Why Lake Pend Oreille feels monster sized
  • Paddler reports and local retellings
  • Sturgeon, logs, Navy craft and distance effects
Preview for Monster, Sturgeon or Submarine Wake?

Introduction

Lake Pend Oreille’s “Paddler” is not Idaho’s most famous lake monster, but it may be the state’s best setting for a mystery-beast story that can be explained without losing its charm. The claim is usually simple: something large, dark, grey or silvery moves through the deep water near Sandpoint, Bayview or the wider lake basin, leaving an odd wake or briefly showing a back, head or body. The harder question is what witnesses actually saw. In this case, the ordinary explanations are unusually interesting: giant sturgeon, floating timber, distance effects, boating wakes, misread scale — and, uniquely for Idaho folklore, U.S. Navy submarine testing on a very deep inland lake. Lake Pend Oreille is Idaho’s largest lake, with depths measured at more than 1,150 feet, and the Navy’s Acoustic Research Detachment at Bayview uses it for submarine acoustic research because it is deep, quiet and controlled enough to behave like a freshwater test range.[Idaho Fish and Game]idfg.idaho.govFish and GameLake Pend Oreille | Idaho Fishing Planner…

Overview image for Paddler

That does not prove every Paddler sighting was a submarine, or that a giant fish explains every ripple. It does mean the legend sits in a rare overlap: a real monster-sized lake, real large fish, real military craft, and a local storytelling tradition that has turned uncertain glimpses into one of North Idaho’s strangest water mysteries.

Why Lake Pend Oreille feels monster-sized

Lake Pend Oreille earns its monster atmosphere before a witness sees anything at all. Idaho Fish and Game describes it as a glacier-formed lake encircled by mountain peaks and deep forests, with 144 miles of shoreline and depths measured in excess of 1,170 feet. It is also a serious fishing lake, known for kokanee salmon, Kamloops rainbow trout, bull trout and lake trout, including record fish history that helps make “something huge down there” feel less ridiculous to anglers and visitors.[Idaho Fish and Game]idfg.idaho.govFish and GameLake Pend Oreille | Idaho Fishing Planner…

The lake’s geography matters because many lake-monster reports are not close-range animal encounters. They are often brief visual puzzles: a shape seen from a boat, a wake moving against expectation, a dark back breaking the surface, or an object glimpsed in changing light across water. Pend Oreille’s size makes those puzzles harder. A log can look alive when wave action rocks it. A boat wake can outlive the boat that made it. A fish seen at an awkward angle can seem longer than it is. A distant Navy model or support craft can look stranger still to someone who does not know what is being tested.

This is why the Paddler belongs so naturally to Idaho folklore. Payette Lake has Sharlie, Bear Lake has its older monster tradition on the Idaho–Utah border, and Pend Oreille has a legend shaped less by one clean monster image than by a case family: large fish tales, Navy secrecy, local retellings, and sightings that appear just solid enough to keep the story alive.

Paddler illustration 1

Paddler reports and local retellings

The Paddler story is not a single tidy chain of evidence. It is a set of recurring local claims that have been reinterpreted over time. Sandpoint-area accounts often point back to early twentieth-century fishing stories, when more people began encountering the lake from small boats rather than just from shore. One local history retelling describes Kristoffer Solheim in an eight-foot rowboat seeing a dark, bumpy-backed shape longer than the boat and deciding not to tangle with “that monster”. The same account treats a large white sturgeon as the most likely explanation and notes a photograph of a 320-pound sturgeon near Laclede as the kind of real fish that could feed Paddler rumours.[Sandpoint Reader]sandpointreader.comSandpoint Reader Mysteries of the deepSandpoint ReaderMysteries of the deep - Part 2 » Sandpoint Reader…

The Second World War period gave the story a different flavour. Farragut Naval Training Station was built at the southern end of the lake during the war; Idaho Parks and Recreation says that by September 1942 it had a population of 55,000, making it the largest “city” in Idaho at the time, and that 293,381 sailors trained there before the facility was decommissioned in June 1946.[Department of Parks and Recreation]parksandrecreation.idaho.govOpen source on idaho.gov. Once that military presence entered local memory, a lake monster report could be read two ways: as a creature story, or as a glimpse of something official that ordinary observers were not meant to understand.

The modern name “Pend Oreille Paddler” appears to have hardened after a 1977 sighting or media episode, rather than from a centuries-old named creature tradition. Sandpoint Magazine’s account of a 1984 investigation by North Idaho College professor James R. McLeod says the claim of a photographed “monster” was eventually traced to a 12-foot papier-mâché catfish used in a Sandpoint play in October 1974. That does not erase all older or later sightings, but it shows how one dramatic piece of supposed evidence could turn out to be theatre prop folklore rather than zoology.[sandpointonline.com]sandpointonline.comSandpoint Magazine Summer 2005The basis for the claim of a "monster" in the lake is directly traceable journalists dubbed the "Pend Oreil…

The result is a legend with several layers. There are sincere water sightings. There are fish stories. There are newspaper and magazine retellings. There is at least one exposed false lead. And there is a real Navy test range that makes the submarine explanation more than a casual joke.

The submarine explanation is unusually plausible here

Most lake-monster stories have to stretch to include submarines. Lake Pend Oreille does not. The U.S. Navy’s Acoustic Research Detachment is located at Bayview on Lake Pend Oreille, and NAVSEA describes the lake as Idaho’s largest, deepest and quietest body of water, reaching about 1,150 feet and offering an ideal environment for acoustic testing without the problems and costs of open-ocean work. The detachment operates large-scale submarine models, test ranges and acoustic facilities for research, development, testing and evaluation of submarine stealth technology.[NAVSEA]navsea.navy.milNaval Sea Systems Command > Home > Warfare Centers > NSWC Carderock > Who We Are > Bayview, Idaho…

That official description gives sceptics a strong starting point. If someone sees a long, dark, artificial-looking object, a strange wake, or activity in deep water near the south end of the lake, a Navy-related explanation is not far-fetched. A 1998 Associated Press report in the Los Angeles Times described remote-controlled model submarines up to 88 feet long operating from the Bayview base, with many tests conducted at night or in mid-lake areas away from most recreation. It also reported that the lake’s depth and stable subsurface temperature made it useful for measuring sound and noise, while limited shoreline development helped create good test conditions.[Los Angeles Times]latimes.comOpen source on latimes.com.

This is where the Paddler becomes more distinctive than a generic “Idaho Nessie”. The alleged monster is not only competing with logs and fish; it is competing with military engineering. Popular Science’s later reporting on the same facility described Lake Pend Oreille as 43 miles long and 1,158 feet deep, and explained that large vehicles such as Cutthroat, a one-third-scale Virginia-class submarine model, are used to test quiet propulsion components including rudders, propellers and motors.[Popular Science]popsci.comOpen source on popsci.com.

The more cautious version of the submarine theory is not that the Navy created every Paddler story, or that all reports are deliberate cover stories. It is simpler: a lake with real large submarine models can produce real ambiguous sightings. People who are not expecting experimental craft may interpret what they see through the available local vocabulary. In North Idaho, that vocabulary includes “monster”.

Paddler illustration 2

Did the Navy use the monster story as cover?

The strongest version of the submarine explanation comes from James R. McLeod, the North Idaho College teacher who investigated the Paddler for years. In a 1996 Spokesman-Review article, McLeod argued that sightings of the supposed creature coincided with Navy submarine tests and suggested that the Navy may have directly or indirectly helped keep the monster rumour alive to discourage public curiosity. He said he had reached that view after documents, interviews and witness accounts involving descriptions such as a periscope-like neck, long tail and wide body.[Spokesman-Review]spokesman.comReview Did Navy Use Fish Story As Cloak? Pend Oreille Paddler Said To Be SubsReview Did Navy Use Fish Story As Cloak? Pend Oreille Paddler Said To Be Subs

The same article also includes the important counterweight: the Navy denied inventing a monster story. Commander Rick Schulz, then heading the Navy’s David Taylor Acoustic Research Center in Bayview, said the claim that the Navy created a cover story was false, while allowing for the possibility that an employee might have joked informally in a bar. The facility, according to that report, opened on the south end of the 43-mile lake in 1946 and worked with model submarines and torpedoes intended to be difficult to detect by sonar.[Spokesman-Review]spokesman.comReview Did Navy Use Fish Story As Cloak? Pend Oreille Paddler Said To Be SubsReview Did Navy Use Fish Story As Cloak? Pend Oreille Paddler Said To Be Subs

For readers, that distinction matters. A deliberate official hoax would be a strong claim and needs stronger evidence than coincidence and rumour. But informal ambiguity is easy to believe. A secretive or semi-secretive military test range, strange objects in the water, local curiosity, and a few jokey remarks could keep a legend alive without anyone needing to run a formal disinformation campaign.

The best evidence-aware reading is therefore mixed. The Navy explanation is plausible for some sightings because the lake really has hosted large test craft. The cover-story explanation is possible as local lore, but not proven. The Paddler is strongest as a collision between genuine military activity and ordinary human pattern-making, rather than as a confirmed animal or a confirmed Navy invention.

Sturgeon, logs, wakes and distance effects

The most natural animal explanation is a very large sturgeon. Idaho Fish and Game describes white sturgeon as the largest freshwater fish in North America and says historical individuals reached up to 1,500 pounds. Its fish identification guide notes the species’ bony plates, downward-facing mouth and large size, and identifies white sturgeon as native in Idaho, with no harvest allowed.[Idaho Fish and Game]idfg.idaho.govOpen source on idaho.gov.

A sturgeon does not need to be mythical to look monstrous. It has a ridged, prehistoric outline, can be dark on the back, and may appear at the surface only briefly. The Sandpoint Reader’s account of Solheim’s bumpy-backed sighting makes that point well: a large fish appearing beside a small rowboat on a deep, cold lake can become a monster memory almost instantly. The same article notes rare surface appearances by white sturgeon as exactly the kind of moment that can become legend-making.[Sandpoint Reader]sandpointreader.comSandpoint Reader Mysteries of the deepSandpoint ReaderMysteries of the deep - Part 2 » Sandpoint Reader…

Still, sturgeon are not a magic answer for every Paddler claim. Idaho Fish and Game’s current Lake Pend Oreille fishing planner lists many species observed in surveys, including kokanee, trout, pike, walleye, perch, whitefish and others, but the visible survey list on that page is not a simple modern confirmation that giant sturgeon are commonly cruising the lake today.[Idaho Fish and Game]idfg.idaho.govFish and GameLake Pend Oreille | Idaho Fishing Planner… Sturgeon work best as a historically plausible source for some large-fish stories, especially older ones and sightings near river connections, not as proof of a breeding monster population.

Other explanations are less glamorous but often more useful. A waterlogged tree can move with wind and waves in ways that seem self-directed. A floating log can show one “hump” and then another as it rolls. A boat wake can travel after the boat is gone, especially on a broad lake where the source is not obvious. Distance compresses scale: a small object nearby and a large object far away can swap places in the mind. At dawn, dusk or under broken cloud, a ripple can become a back, and a back can become a creature.

These explanations do not make witnesses foolish. They show why Pend Oreille is a good legend machine. The lake supplies enough real-world ambiguity that people can be honest and still be wrong.

Paddler illustration 3

Why the legend changed from threat to mascot

Early Paddler-style stories seem to have carried a little fear: fishermen in small boats, dark shapes, deep water, something bigger than expected. Later retellings made the creature more playful. Once the name “Paddler” stuck, the monster became easier to draw, joke about and market. Sandpoint-area articles now often frame it as a North Idaho cousin of other lake monsters rather than as a serious danger.[Cedar Post]shscedarpost.comCedar Post THE PEND OREILLE PADDLERCedar Post THE PEND OREILLE PADDLER

That shift is common in lake-monster folklore. A frightening sighting becomes a named local character. The named character becomes a tourism hook. The tourism hook becomes part of regional identity. What began as “what was that thing in the water?” turns into “our lake has a monster too”. The difference with Pend Oreille is that the joke has a harder technical edge. When people say “maybe it was a submarine”, they are not only being sceptical; they are pointing to an actual local industry.

The exposed papier-mâché catfish episode also changed the story’s credibility. It gave sceptics a concrete case where supposed evidence was not just weak but misidentified. Yet it did not kill the Paddler because the legend had never depended on one photograph alone. It depended on the lake’s feel: deep, cold, military, forested, and full of things that can be misread from the surface.

What the Paddler probably tells us about Idaho

The Pend Oreille Paddler is best understood as a risk-of-error legend: a case where the setting is so good at producing false positives that the sceptical explanations become part of the fun. The creature claim remains unconfirmed. There is no strong mainstream evidence for an unknown large animal in the lake. But the surrounding facts are unusually rich. Lake Pend Oreille really is vast and deep. It really has supported large fish stories. Farragut really was a major wartime naval installation. The Navy really does operate a submarine acoustic research site at Bayview. Large unmanned submarine models really have used the lake.[idaho.gov]idfg.idaho.govFish and GameLake Pend Oreille | Idaho Fishing Planner…

That makes the Paddler one of Idaho’s most explainable cryptid traditions, but not one of its least interesting. The pleasure of the story is not that a hidden animal has been proved. It is that Lake Pend Oreille gives every witness and listener several live options at once: monster, sturgeon, log, wake, military model, or local joke. Each answer says something about North Idaho’s landscape — its deep water, its fishing culture, its military history, and its habit of turning a strange glimpse into a story worth retelling.

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Endnotes

1. Source: idfg.idaho.gov
Title: Fish and Game
Link:https://idfg.idaho.gov/ifwis/fishingplanner/water/1163468481594

Source snippet

Lake Pend Oreille | Idaho Fishing Planner...

2. Source: navsea.navy.mil
Link:https://www.navsea.navy.mil/Home/Warfare-Centers/NSWC-Carderock/Who-We-Are/Bayview-Idaho/

Source snippet

Naval Sea Systems Command > Home > Warfare Centers > NSWC Carderock > Who We Are > Bayview, Idaho...

3. Source: parksandrecreation.idaho.gov
Link:https://parksandrecreation.idaho.gov/state-park/farragut-state-park/

4. Source: sandpointonline.com
Link:https://www.sandpointonline.com/sandpointmag/sms05/feature1b.html

Source snippet

Sandpoint Magazine Summer 2005The basis for the claim of a "monster" in the lake is directly traceable journalists dubbed the "Pend Oreil...

5. Source: spokesman.com
Title: Review Did Navy Use Fish Story As Cloak? Pend Oreille Paddler Said To Be Subs
Link:https://www.spokesman.com/stories/1996/nov/15/did-navy-use-fish-story-as-cloak-pend-oreille/

6. Source: idfg.idaho.gov
Link:https://idfg.idaho.gov/fish/sturgeon

7. Source: idfg.idaho.gov
Link:https://idfg.idaho.gov/fish/identification/resident

8. Source: idaho.gov
Link:https://idaho.gov/

9. Source: idfg.idaho.gov
Title: pend oreille chapter shares online class recordings
Link:https://idfg.idaho.gov/blog/2021/04/pend-oreille-chapter-shares-online-class-recordings

10. Source: idfg.idaho.gov
Title: hells canyon white sturgeon population
Link:https://idfg.idaho.gov/article/hells-canyon-white-sturgeon-population

11. Source: idfg.idaho.gov
Title: studying idahos white sturgeon fishery upper snake river
Link:https://idfg.idaho.gov/press/studying-idahos-white-sturgeon-fishery-upper-snake-river

12. Source: idfg.idaho.gov
Link:https://idfg.idaho.gov/ifwis/fishingplanner/water/1173521489999

13. Source: idfg.idaho.gov
Title: s largest fish gets boost biologists
Link:https://idfg.idaho.gov/press/idahos-largest-fish-gets-boost-biologists

14. Source: idfg.idaho.gov
Link:https://idfg.idaho.gov/species/taxa/15794

15. Source: idfg.idaho.gov
Link:https://idfg.idaho.gov/fish/record/sturgeon/guidelines

16. Source: idfg.idaho.gov
Title: farragut shooting range history
Link:https://idfg.idaho.gov/blog/2016/04/farragut-shooting-range-history

17. Source: sandpoint.com
Link:https://www.sandpoint.com/community/farragut.php

18. Source: sandpointonline.com
Link:https://www.sandpointonline.com/rec/lakeguide/history.html

19. Source: sandpointreader.com
Title: Sandpoint Reader Mysteries of the deep
Link:https://sandpointreader.com/mysteries-of-the-deep-part-2/

Source snippet

Sandpoint ReaderMysteries of the deep - Part 2 » Sandpoint Reader...

20. Source: latimes.com
Link:https://www.latimes.com/archives/la-xpm-1998-aug-23-me-15711-story.html

21. Source: popsci.com
Link:https://www.popsci.com/technology/lake-pend-oreille-idaho-submarine-testing/

22. Source: shscedarpost.com
Title: Cedar Post THE PEND OREILLE PADDLER
Link:https://shscedarpost.com/9043/arts-and-culture/the-pend-oreille-paddler/

23. Source: Wikipedia
Title: Pend Oreille Paddler
Link:https://en.wikipedia.org/wiki/Pend_Oreille_Paddler

24. Source: Wikipedia
Link:https://en.wikipedia.org/wiki/Idaho

25. Source: Wikipedia
Title: Lake Pend Oreille
Link:https://en.wikipedia.org/wiki/Lake_Pend_Oreille

26. Source: Wikipedia
Title: Farragut Naval Training Station
Link:https://en.wikipedia.org/wiki/Farragut_Naval_Training_Station

27. Source: cryptidz.fandom.com
Link:https://cryptidz.fandom.com/wiki/Paddler

Additional References

28. Source: youtube.com
Title: Hidden Little Secret, Pend Oreille Lake, RV Lifestyle. Ep 2.29
Link:https://www.youtube.com/watch?v=zd_JTxyM4N4

Source snippet

Farragut State Park Idaho | Hiking a Former WWII Naval Base on Lake Pend Oreille...

29. Source: youtube.com
Title: Farragut State Park Idaho | Hiking a Former WWII Naval Base on Lake Pend Oreille
Link:https://www.youtube.com/watch?v=SMnm1ELBuvw

Source snippet

We Bought a TOP SECRET Navy Barge (full tour)...

30. Source: youtube.com
Title: Get to Know Idaho: History of Lake Pend Oreille and the U.S. Navy
Link:https://www.youtube.com/watch?v=1lDApwAyieM

Source snippet

Hidden Little Secret, Pend Oreille Lake, RV Lifestyle. Ep 2.29...

31. Source: fws.gov
Link:https://www.fws.gov/species/white-sturgeon-acipenser-transmontanus

32. Source: youtube.com
Title: The Hunt for the Pend Oreille Paddler trailer
Link:https://www.youtube.com/watch?v=YR_rFOUBgq8

Source snippet

Get to Know Idaho: History of Lake Pend Oreille and the U.S. Navy...

33. Source: repi.mil
Link:https://www.repi.mil/Portals/44/ARDBayview_1.pdf

34. Source: sandpointmagazine.com
Link:https://sandpointmagazine.com/story/even-wilder-encounters/

35. Source: facebook.com
Link:https://www.facebook.com/YourHealthIdaho/posts/fun-fact-friday-lake-pend-oreille-at-180-sq-miles-is-the-largest-in-the-state-fo/1066285315532785/

36. Source: facebook.com
Link:https://www.facebook.com/groups/397526214154529/posts/863770430863436/

37. Source: idahostatesman.com
Link:https://www.idahostatesman.com/

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