~ A PRIVATE ARCHIVE & GIFT SHOPPE ~

Bluffy's
Hollar

Coloured engraving of an alligator, ca. 1800, Wellcome Collection
~ FIG. 1: ALLIGATOR (WELLCOME, c. 1800) — "EVIDENT TEMPERAMENT" ~
The Big Lake Cryptid Archive & Gift Shoppe
COUNCIL BLUFFS, IOWA  ~  POTTAWATTAMIE COUNTY
MAINTAINED BY THE HAVERSTOCK FAMILY SINCE 1998
▶ LATEST SIGHTINGS LOG ▶   10/02/25 — FISHERMAN REPORTS "V-SHAPED WAKE" NEAR SOUTH POND AT DUSK  |  09/14/25 — DAWN PATROL HEARD TWO LOW GROWLS BEHIND THE LEVY  |  08/29/25 — TRAIL CAM (CAM 04) CAPTURED 3 SECONDS OF SOMETHING — REVIEWING  |  06/11/25 — "BIG ONE" — ANONYMOUS, VERIFIED CREDIBLE   ▶ ▶ ▶
Marsh and cattails at dawn
~ Big Lake Park — west cove, the Hollar — spring 2024 ~

~ The Legend of Bluffy ~

Reference photo: American alligator, head detail
~ Field reference, A. mississippiensis ~

In Council Bluffs, on the west side of a 191-acre city park off North 8th Street, there is a lake. It was once an oxbow of the Missouri River — a riverbend left behind when the water changed its mind. A raised earthen levy bisects the park, separating the main lake on the north from two smaller ponds on the south. The northwestern cove of the lake, choked with cattails and the occasional broken paddleboat, has been called "the Hollar" by locals since at least the 1950s. Something lives in the Hollar.

The modern record begins in 1962, when a brakeman for the Chicago & North Western named Roy Tvedt reported a "pale, log-shaped animal, five or six foot, with eyes" surfacing near the reeds at dawn. He described it to a reporter from the Daily Nonpareil as bigger'n it had any right to be, up here. Iowa is not alligator country. That is the first thing anyone who hears about Bluffy will tell you. Iowa is not alligator country.

And yet — between 1962 and today — we have catalogued no fewer than 47 credible witness accounts of a large, dark-backed, plainly reptilian animal in the waters of Big Lake Park. The Pottawattamie County Sheriff's Office has an open informational file (not an investigation, they are careful to say). The Iowa Department of Natural Resources, who restock the lake with rainbow trout twice a year, have, in their own words, no comment at this time. In 1996 a fourteen-year study of creel-return data suggested trout returns were running roughly 22% below expected for a lake of this class. The memo explaining the discrepancy was filed and never followed up.

We do not say that the animal is one animal. It may be a lineage. It may be that several have lived and died in the Hollar over seventy years. What we say — what the Haverstock family has been saying since my grandfather started clipping articles into a shoebox in 1968 — is that something is in there.

I'm not the spooky sort. I've fished that lake forty-one years. In April of '09 I had something take a hooked carp right off the line — fish an' all — and the carp was a solid 14 pounds. A snapper don't do that. A pike don't do that. A catfish big enough to do that would be in the newspaper. — Duane P., Glenwood, IA (reported 04/19/2009)
~ From the Family Album ~ (photos of the Hollar, the levy, & the shoppe)
The Hollar at dawn — cattails, undated
The Hollar, NW cove — undated
The levy path, south side, walking west
Levy walk, south side — '03
The Bluffy's Hollar shoppe exterior
The shoppe — opening weekend
☞ Originals in the family album (shoe box, top shelf of the hall closet). Scans at the shoppe by appointment.

~ Sightings Timeline ~

Selected entries from the Haverstock Archive. The full archive — 487 logged incidents as of the last update — is available for in-person research by appointment.

c. 1847 The Kanesville Journals

A handful of Mormon pioneer journals from the Kanesville encampment (the settlement that would become Council Bluffs) make passing reference to a "dragon" or "water-wyrm" in the oxbow lakes north of the bluff. The original documents are held in scattered private and church collections; transcriptions in the Pottawattamie Historical archive are partial and, in several instances, second-hand. The provenance is soft. We include them because they are there.

1934 The WPA Drainage Survey

A Works Progress Administration drainage crew surveying the Big Lake watershed allegedly recorded reptilian specimen, approx. 7 ft in a field-notebook during August of 1934. The notebook is referenced in a 1962 county-clerk inventory but cannot be located in the current county archive. We are told it was "pulled for conservation" sometime in the 1980s and not returned.

1962 The Tvedt Sighting — Modern Era Begins

Roy Tvedt, brakeman. 5:40 AM. Reported in the Daily Nonpareil, page 6, under the headline GATOR IN BIG LAKE? BRAKEMAN SAYS YES. Ran three paragraphs. The paper printed a follow-up the next week concluding it was probably a displaced muskrat. Mr. Tvedt wrote a letter to the editor that began: I know what a muskrat looks like.

Dec. 17, 1977 The "Fireball" Night

At 7:45 PM on a Saturday evening, eleven independent witnesses — including members of the Council Bluffs fire and police departments — observed a "reddish object about 500–600 feet in the air, falling straight down" into Big Lake Park. A flash, two arms of fire ten feet high, and scattered molten high-carbon steel debris were recovered. This event is independently documented by the Historical and Preservation Society of Pottawattamie County and has never been satisfactorily explained. In the three weeks following the impact, my grandfather recorded seven new sighting reports — more than the entire preceding year. The Haverstock family does not claim the two events are related. We note only that they occurred.

Apr. 1984 The Paddleboat Incident

A family of four, visiting from Glenwood, rented a paddleboat from the seasonal concession (no longer in operation). Twenty minutes in, something hit the boat hard enough to spin us sideways. The youngest child, seated in the bow, reported seeing "scales, a row of them" break the surface two feet off the port hull. The boat was returned early. The rental log notes only: "gouge in left pontoon, no refund." The concession closed in 1991.

1987–1996 The Trout Anomaly

Beginning in fall 1987, returns on DNR-stocked rainbow trout ran consistently below modeled projections. An internal DNR memo dated March 4, 1996 attributes the shortfall to accumulated vegetative debris, likely large common carp (Cyprinus carpio) predation, and possible unauthorized removal. The memo is reproduced in the Archive below. In 1997 the stocking protocol was quietly modified to increase stock count by 15%. No public explanation was ever given.

Apr. 12, 1996 The Polaroid

5:47 AM. Henry "Hank" Haverstock — my father — took a single Polaroid photograph from the east side of the levy looking west into the Hollar. He was there to photograph waterfowl. He did not see the animal in the viewfinder; he saw it only when the Polaroid developed. He told my mother what he'd gotten, sat at the kitchen table for fifteen minutes, and then said only: I'm glad it was a Polaroid. I'd have never trusted a negative. The original hangs in the shoppe behind glass. A scan is reproduced below. Believe what you will.

Oct. 2002 The Cross-Country Sighting

A junior from Abraham Lincoln High School, on a training run with the girls' cross-country team, fell behind on the levy path. She reported seeing something bigger than me slide off the levy into the water approximately fifteen feet ahead. She was teased for it for the rest of the season. In 2017, as an adult, she sent us a signed statement reaffirming the account without alteration. She declined to be named.

Summer 2011 The Flood Year

During the historic 2011 Missouri River flood, which inundated large portions of western Iowa and eastern Nebraska, Big Lake breached its levy for nine days. The Haverstock Archive received nineteen sighting reports in June alone — the most of any month on record. Three reports independently described the animal as "moving overland, across the access road, toward the trees." Post-flood, reports dropped to near zero for sixteen months. Some of us think it left. Some of us think it found somewhere quieter.

Aug. 2019 The Drone Footage

A Council Bluffs resident flying a consumer drone over the south ponds captured three seconds of footage showing something long and dark making a slow S-turn beneath the surface before disappearing into shadow. The footage was posted to a regional Facebook group, received 412 comments, and was taken down four days later. We have a copy. It convinces the convinced and is dismissed by the dismissive. Such is the nature of the thing.

Jun. 11, 2025 "The Big One"

An anonymous witness — whose identity and occupation are known to the Archive and verified — reported, from a distance of approximately thirty yards in full daylight, an animal they estimated at twelve to fourteen feet. The witness took no photograph. The witness was not carrying a phone. The witness said, by way of explanation: I didn't want to look away.


~ The 1996 Polaroid ~

Partially submerged shape in still water at dawn
Big Lake — 4/12/96 — 5:47 AM — H.H.
What You're Looking At. Taken from the east side of the levy, facing west-northwest into the Hollar. Sun was rising behind the photographer. The animal — if that is what you're seeing — is approximately 70–90 feet from the lens.

Skeptics say: a partially submerged cottonwood log with a stub branch.
Believers say: look at the eye.

The original has never been digitally enhanced. The scan above is a flatbed capture at 600 dpi with no edits save a crop. We invite you to decide.

~ Sightings Map ~

Selected sightings, 1962–present, plotted over Big Lake Park. The Hollar (northwest cove) accounts for roughly 58% of all credible reports. Secondary clusters appear at the west spillway and the southwest pond.

Reading the map. The lake's distinctive shape is visible from the air — an old Missouri River oxbow, kinked at the northwest into the cove the locals call the Hollar. The raised earthen levy bisects the park east-to-west; the two south ponds sit below it. N 8th Street runs along the east edge.

Approximate sighting clusters from the Haverstock Archive (1962–present):
  ▶ NW — The Hollar: ~58% of all credible reports. Includes the 1962 Tvedt sighting and the location of the 1996 Polaroid.
  ▶ Center — main lake: ~22%. The 1984 paddleboat strike and the bulk of 2011 flood-year reports.
  ▶ South ponds & access road: ~20%. Includes the 2011 overland trail and the 2019 drone footage.
Live satellite view via Google Maps. Park coordinates approx. 41.288° N, 95.853° W. For the original hand-drawn schematic, see Haverstock Archive Vol. I.

~ The Haverstock Archive ~

Scanned selections from the family archive. Originals are in archival sleeves at the shoppe and may be viewed by appointment. Please do not ask to view them during the Fall Harvest Weekend; we are busy.

IOWA DEPARTMENT OF NATURAL RESOURCES
INTERNAL MEMORANDUM — FISHERIES DIVISION
TO: Regional Supervisor, Region 4
FROM: J. Ostlund, Fisheries Biologist II
RE: Big Lake (Pott. Co.) — Stocking Returns Variance
DATE: March 4, 1996

Per regional request, a review of 14-year creel and electrofishing data for Big Lake indicates rainbow trout returns running approx. 22% below modeled recovery. The variance is persistent and not explained by angler-effort data.

Contributing factors may include accumulated vegetative debris, unauthorized removal, and possible predation by resident large common carp (Cyprinus carpio) or similar. Other predators not native to the region cannot be ruled out but are considered unlikely absent direct evidence.

Recommend stocking adjustment for FY97 of +15% pending further investigation. No public statement warranted at this time.
Paddleboat "Hit" at Big Lake; Family Cut Outing Short

A Glenwood family's Sunday outing at Big Lake Park ended early this weekend after what the father described as a solid, direct strike to the hull of their rented paddleboat approximately 150 yards from shore.

It wasn't a log, the man said, declining to be named. A log don't turn you sideways. My daughter saw scales. I told her it was a snapper. I don't think it was a snapper.

The concession operator declined a partial refund, citing visible damage to the left pontoon. A Parks & Rec. spokesperson, reached Monday, said the department had no unusual reports from the lake and suggested the animal in question was likely a snapping turtle or large carp.

Oct. 8th, 2017
Dear Mr. Haverstock,

Thank you for the kind response to my letter. As I said, I am forty-one years old now and the cross-country coach I had is long retired. I do not need anyone to believe me anymore. I only want the account to be on record before I forget a detail of it, which I have not, but which I might.

What I saw slid off the top of the levy the way a person slides off a dock — on purpose, not falling. That is the part that stays with me. Not the size. The decision in it. I had the sense, and still have, that it knew exactly where it was going and that I had only seen it because it had not minded being seen.

You may include this in the archive. You may not use my name.

— (withheld)
INFORMATIONAL
POTTAWATTAMIE COUNTY SHERIFF'S OFFICE
INCIDENT REPORT — NON-CRIMINAL
INCIDENT #: 11-06-0874
DATE: 06/14/2011   TIME: 19:42
LOCATION: Big Lake Park, access road near SW pond

REPORTING OFFICER: Dep. [redacted]

NARRATIVE: Responded to caller reporting "large animal" on roadway. On arrival observed wet, dragging trail pattern approx. 9–11" wide crossing asphalt from east shoulder to vegetation line, consistent with reptile of significant size. No animal observed. Trail photographed. Wildlife not a law enforcement matter. Report filed for reference only. Caller advised to contact IA DNR.

DISPOSITION: CLOSED — INFORMATIONAL.

~ Origin Theories ~

We do not endorse any single theory. We display all five.

1. The Escaped Pet

The most popular theory. An exotic hatchling, purchased in the mid-to-late 1960s — a permissive era for such things — grew beyond its owner's means and was released into the lake. American alligators have been documented living decades in well-insulated overwintering burrows. Plausible on the merits; weak only on the question of how many. Plausibility: HIGH

2. The Carnival Leak

A small roadside menagerie operating near Manawa in the summer of 1961 is rumored to have kept a juvenile alligator in a horse trough. The operator is said to have released the animal when the operation folded. No surviving business records confirm the menagerie existed; three separate elderly residents have independently described it to the Archive. Plausibility: MODERATE

3. The River Migration

Alligators have been documented expanding their range northward along river systems. The Missouri River is a continuous corridor from the Gulf of Mexico to Big Lake's former channel. The 2011 flood, which briefly reconnected the lake to the river, is an uncomfortable data point for those who prefer this theory not to be true. Plausibility: MODERATE

4. The Old Account

The Kanesville journals — if taken at face value — describe the animal almost a century before any plausible pet or carnival release. If something has been in the Hollar since before the lake bore its current name, we are not dealing with a stray. We are dealing with a resident. We note this theory is the least parsimonious and also the one the old-timers prefer. Plausibility: LOW (but beloved)

5. The 1977 Theory

A minority position. The documented molten-metal impact at Big Lake Park on the night of December 17, 1977 remains unexplained. In the three weeks following, sighting reports spiked. Some in the community believe the two events are causally connected; most, including the Archive, believe the correlation is real but the causation is not. We include the theory because people hold it sincerely and an archive that refuses to catalogue unfashionable beliefs is not an archive. Plausibility: SPECULATIVE

— The Haverstock Position —

We hold, as a family, that the simplest explanation consistent with the evidence is a small founder population — possibly one animal, possibly two — of escaped or released captive origin, established no later than 1960, persisting through assisted overwintering conditions in the lake's deeper sections and possibly a spring-fed pocket on the north side of the levy. We acknowledge our bias. We have been in this a long time. Plausibility: (we would say so)

~ The Shoppe ~

Proceeds support the Archive, park cleanups, and trail camera batteries. Open Saturdays & Sundays, 9–4, April through October. Off-season by appointment. Cash, check, & Venmo — no cards, sorry.

ItemNotesPrice
Bluffy Plush (small, 8") Hand-sewn by Reba. Each slightly different. No two alike. $18.00
Bluffy Plush (large, 22") Same, bigger. Takes Reba about four evenings. $52.00
"I'm a Bluffy Believer" Bumper Sticker Vinyl, weather-proof. Green on cream. $4.00
Sightings Map Print (11×17) Updated annually. Signed by Reba. 2025 Ed. $14.00
The Haverstock Archive — Vol. I (1962–1999) Spiral-bound, 118 pgs. Selected reports, memos, clippings. Self-published. $26.00
The Haverstock Archive — Vol. II (2000–2024) Spiral-bound, 146 pgs. Includes drone footage stills. $28.00
Polaroid Reproduction (5×7, framed) High-res scan of the 1996 photograph. NOT the original. $38.00
"Gator-Aid" Local Honey (8 oz) From hives east of the park. Tastes like basswood. NEW $9.50
Bluffy Bites (smoked beef jerky, 4 oz) Not made from Bluffy. We want to be clear about that. $11.00
Trail Cam "Lucky Frame" Print The 2019 drone still. Ambiguity fully preserved. $22.00

* We do not sell alligator products of any kind. *


~ Dawn Patrol Tours ~

Saturday Mornings — April through October

Reba Haverstock leads a 90-minute guided walk around the levy and the edge of the Hollar beginning at first light (arrival time changes with the season — call ahead or check the sandwich board at the shoppe). Group size capped at eight for noise reasons. Good walking shoes. Bring a thermos.

Cost: $15 per adult, $5 per kid, free for anyone over seventy who asks.
What we do: walk quietly, listen, review the recent sightings log, look at a Polaroid reproduction in the field where the Polaroid was taken.
What we don't do: promise you anything. We have never had a confirmed sighting during a Dawn Patrol. We tell you that up front. We still go every Saturday.

If it wanted to be seen on a schedule, we'd have sold it to a zoo by now. — Reba


~ Report a Sighting ~

Seen something? CLICK HERE to file a report. We triage every one. Your identity can be withheld on request.
(recent entries reproduced below with permission — some redacted for privacy)

Anonymous (Council Bluffs) — 10/02/2025, 6:48 PM
Fishing east bank. Didn't see anything but watched a wake move against the wind for maybe 40 yards. It was against the wind. I want to stress that.
Marlys & Stan (Omaha) — 09/14/2025, 5:55 AM
We were on the Dawn Patrol. Reba stopped us on the levy and held up a hand. There was a sound. It was not a bullfrog. It was not a heron. I have lived in Nebraska my whole life and I know what frogs and herons sound like.
"Angie K." — 07/19/2025, 8:10 PM
Walked the south trail with my dog. Dog stopped and would not go forward. I could not see anything. The dog would not go forward. We went back.
Dale H., retired USPS — 06/11/2025, ~2 PM
This is the "big one" from the marquee. I've written it up elsewhere. I will say only: I am not a dramatic person. I have been on the Bluffy mailing list since 2003. I thought I had an imagination about this. I did not.
A Skeptic — 05/30/2025, 11:42 AM
It's a carp. It's been a carp this whole time. Stop making money off a carp.
Reba H. (proprietor, in reply) — 05/30/2025, 2:15 PM
Hi, [Skeptic]. If it's a carp, come on a Dawn Patrol — free, on the house — and point it out. I mean that. We'll even split a thermos.


ARCHIVE ONGOING — LAST UPDATE: 11/03/2025


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