File 366 · Open
Case
What Lake Mead's receding water has exposed
Pillar
Unexplained
Period
Town settled 1865, submerged from 1935; reservoir filled 1935 onward; principal discoveries 2022–2026
Location
Lake Mead, on the Colorado River behind the Hoover Dam, Nevada and Arizona
Beneath it
The Mormon settlement of St. Thomas; a U.S. Army Air Forces B-29 lost on a classified flight in 1948; and an unknown number of human remains
Status
Open. On August 7–8, 2026 the reservoir fell to the lowest level ever recorded. The 1865 town has resurfaced. The man found shot and sealed in a barrel in May 2022 has still not been identified.
Last update
August 10, 2026

Lake Mead: What the Water Gave Back.

When the Hoover Dam closed in the 1930s, the rising Colorado swallowed a pioneer town, and over the following decades the reservoir quietly accumulated other things: a bomber lost on a secret test flight, boats, and people. Lake Mead is not a mystery in itself. It is a container — and a drought that has pulled the surface down more than 188 feet is opening it. This file sets out what is actually down there, what the water has handed back so far, and which of those things remains genuinely unresolved.

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A note on how this file is written. Several of the people named here were recovered from this water and returned to their families. They are named because their identifications are a matter of public record and because being named is the point — each was a missing person until the lake gave them back. One man has not been identified, and he was murdered. No suspect has ever been named in that case and this file names none.

Confidence key — claims in this file are tagged as follows Verified primary documentary support · Claimed asserted by a named party, not independently confirmed · Disputed credible sources contradict each other · Unverified we could not substantiate it · how we decide

What the Lake Mead case is, in a paragraph.

Lake Mead is the reservoir formed when the Hoover Dam blocked the Colorado River, and it is the largest in the United States by capacity. Filling it drowned a landscape that people had been living in, and dying in, for a long time — including St. Thomas, a settlement founded by Mormon pioneers in 1865, whose last residents left in 1938 as the water reached their doors. For most of the following century the lake kept what it had taken. Then the Colorado basin entered a prolonged drought. By 2022 the surface had dropped far enough that objects began appearing along the shoreline, and among them, on May 1, 2022, was a corroded barrel containing the body of a man who had been shot. He has never been identified. Over that summer several more sets of human remains surfaced; most were identified as people who had drowned decades earlier, and were returned to their families. Somewhere below, at around 280 feet, sits a B-29 Superfortress that went into the water in 1948 on a flight so classified that its surviving crew were ordered never to mention it. In August 2026 the lake fell to within inches of its record low, and St. Thomas — which has now surfaced and vanished repeatedly since 1938 — is standing in open air again. The case here is not that Lake Mead is haunted or anomalous. It is that a reservoir is an accidental archive, and this one is being read.

The documented record.

The water level

Verified On August 7, 2026 Lake Mead fell past the record low it had set on July 28, 2022 — 1,040.58 feet above sea level — and kept going. By August 8 the surface stood at 1,040.34 feet, the lowest level ever recorded since the reservoir was filled in the 1930s, holding about 26.8 per cent of capacity. It has fallen every day since July 31. The waterline is now more than 188 feet below full pool. What that exposes is not only shoreline: rocky spires, drowned trees and the tops of submerged mesas have re-emerged, along with the pale mineral band on the canyon walls — the “bathtub ring” — that marks where the water used to be [1][2].

St. Thomas, twice abandoned

Verified St. Thomas was settled in 1865 by Mormon pioneers on the Muddy River, in what is now the Overton Arm of the lake. It became a freight stop on the route between Utah and California and grew to a peak population of around 500. Its first abandonment had nothing to do with water: the settlers believed they were in Utah or Arizona Territory, and when Nevada established that they were in fact Nevadans and demanded back taxes, many simply left — burning buildings behind them. The town was later resettled.

The second abandonment was the dam. In 1928 President Coolidge signed the legislation authorising the Hoover Dam; from 1935 the impounded Colorado began to rise into the valley, and by 1938 St. Thomas was empty. The last resident was Hugh Lord, a garage owner, who set fire to his own house and rowed away on June 11, 1938 [3][4][9].

It has come back before

This is the part the coverage tends to omit, and it is the most useful context in the file. Verified St. Thomas has surfaced repeatedly. It reappeared in 1945, and former residents held a reunion in the ruins. It came back again in 1962 and stayed above water for roughly nine years. It then remained submerged from about 1972 until 2002, when it emerged once more and another reunion was held. The current exposure is the latest instance of a cycle, not a singular event — and the ruins are now a marked site within the Lake Mead National Recreation Area, with a trail, rather than a lost place [3][4].

The barrel

Verified On May 1, 2022, boaters near Hemenway Harbor found a rusted metal barrel exposed by the falling water. Inside were human remains. The Clark County coroner determined that the man had died of a gunshot wound and ruled the manner of death homicide. Investigators placed the death decades earlier on the basis of items recovered with the body. He has never been identified. On November 29, 2023 the FBI released facial approximation images built from the remains, asking the public for help putting a name to him. As of this file's date, none has been established [5][6].

The others the lake returned

Verified The barrel was the first of several finds in 2022, and the rest tell a different and gentler story. On May 7, 2022, remains found in the Callville Bay area were identified as Thomas Erndt of Las Vegas, who had drowned in August 2002 at the age of 42. Remains recovered near Boulder Beach between July and August 2022 were identified in April 2023, after DNA analysis, as Claude Russell Pensinger of Las Vegas, who had disappeared in 1998. Remains found by a diver at Callville Bay on October 17, 2022 were identified in March 2023 as Donald P. Smith of North Las Vegas, who had drowned in April 1974 at the age of 39; his death was ruled accidental. Contemporaneous reporting counted as many as six sets of remains surfacing between May and that autumn. With the exception of the barrel victim, these were not mysteries — they were long-open missing-person and drowning cases that the drought closed [5][7].

The bomber

Verified On July 21, 1948 a U.S. Army Air Forces B-29 Superfortress, piloted by Capt. Robert M. Madison, came down in the Overton Arm — the same reach of the lake that holds St. Thomas. The flight was testing a classified missile guidance system, a sun-tracking device. All five men aboard survived: Madison, 1st Lt. Paul M. Hesler, Staff Sgt. David D. Burns, John W. Simeroth, and Sgt. Frank A. Rico, who was trapped in the sinking aircraft and pulled out through a cockpit window by a crewmate. They were picked up roughly five to six hours later and instructed to say nothing about the flight, its purpose, or its loss. Because the work was secret, the details stayed unpublished for roughly half a century. Disputed One caveat belongs on the popular telling: at least one National Park Service historian has noted that the flight's own paperwork was marked unclassified, even though the missile-guidance application of the data it was gathering was secret — so “classified mission” may compress a more mundane distinction. A private dive team located the wreck in 2001 using side-scan sonar, at a depth of around 280 feet. It is now protected by the National Park Service and may be dived only with approved operators [8].

What each strand actually shows.

Why the barrel is the real open case

Verified Of everything the lake has produced, only one item is unresolved in the strict sense. A drowning victim identified after twenty years is a sad administrative closure. A man shot and sealed in a barrel is an unsolved homicide with no name attached to the victim — which is the harder kind of case, because identification usually precedes investigation. Without knowing who he was, there is no circle of associates to examine, no last-seen date, no motive to reconstruct. The FBI's 2023 facial approximation was an attempt to break exactly that deadlock, and it has not yet worked.

What the barrel does and does not tell you

Disputed The disposal method has driven a great deal of speculation toward organised crime, on the reasoning that a barrel in a reservoir outside Las Vegas is a recognisable signature. It is a reasonable inference and it is not evidence. Nothing publicly released establishes a connection to any criminal organisation, and no suspect has ever been named. What the recovery does establish is narrower and still meaningful: that the killer expected the water to be permanent. The concealment worked for decades and failed only because the climate changed — which is a genuinely novel category of forensic development, and one likely to recur as reservoirs across the American West fall.

Why the drought is doing the work

Verified The Colorado basin has been in prolonged drought, and Lake Mead's decline is the visible index of it. Nothing about the discoveries requires any explanation beyond that: objects that were placed or lost in shallow water became inaccessible when the reservoir filled, and are becoming accessible again as it empties. The interesting question is not why things are appearing but how much is still down there — and the honest answer is that nobody has an inventory.

The pattern of resurfacing

Verified The four documented resurfacings of St. Thomas — 1945, 1962, 2002, and now — are the best corrective to the tone of most coverage. Each has been reported in its era as an eerie unveiling; each was a predictable consequence of reservoir management and rainfall. The reunions held by former residents in 1945, 1962 and 2002 are the detail worth keeping, because they reframe the site: for the people who left in 1938, this was not a ghost town emerging from the deep. It was home, coming back up [3][4].

The bomber as a declassification case

Verified The B-29 belongs in this archive for a reason beyond novelty. Its crew survived and were ordered into silence; the loss of a large military aircraft in a public reservoir was successfully kept out of the record for decades, not because of any elaborate operation but because the men involved were told not to discuss it and did not. It is a small, clean example of the mechanism this archive documents repeatedly in its Declassified pillar — that most secrecy is not conspiracy but instruction, and that it holds until someone with sonar goes looking [8].

The competing readings.

“The lake is giving up its bodies”

Claimed The popular framing holds that Lake Mead is disgorging a hidden mass of murder victims, and that many more will follow. The kernel is real — remains have surfaced, and one is a homicide. The inflation is in the arithmetic. Lake Mead is enormous, has been a major recreation destination since the 1930s, and has recorded a substantial number of drownings and boating deaths over ninety years. A reservoir that gives back several sets of remains during a record drawdown is behaving exactly as a body of water with that history should. The 2022 identifications support this reading rather than the sensational one: three of the four were accidental drownings.

The mob reading

Disputed The proximity to Las Vegas and the barrel itself have made an organised-crime explanation close to the default in coverage. It may well be right. It is also, at present, an association rather than a finding — and it has the unhelpful side effect of making the victim into a genre detail instead of an unidentified man whose family may still be looking for him.

The deflationary reading

Claimed The most defensible position is that Lake Mead contains roughly what you would predict: a drowned town nobody hid, an aircraft whose loss was classified for ordinary Cold War reasons, the accumulated debris of a century of recreation, and the remains of people who died in the water. One murder victim is among them. That is not a mystery about the lake. It is one unsolved homicide, plus a landscape becoming visible again.

The unanswered questions.

Who the man in the barrel was

Unverified This is the central gap and it is a solvable one. He has a face reconstruction, a cause of death, and an approximate era. What he does not have is a name, and until he does, the homicide cannot meaningfully be investigated. Anyone with information is directed to the Las Vegas Metropolitan Police Department or the FBI rather than to this archive.

What else is on the bottom

Unverified There is no comprehensive survey of Lake Mead's floor. The B-29 was found in 2001 by a private team that went looking; it had been there fifty-three years. Sunken boats, vehicles and structures are known to be present in unknown quantity, and the National Park Service has not published an inventory. What further drawdown will expose cannot be predicted, only observed.

How low it goes

Disputed Whether the reservoir stabilises, recovers, or continues toward “dead pool” — the level at which water can no longer pass the dam — is a live question of hydrology and interstate water policy rather than of mystery, and it is the variable that determines everything else in this file.

The sequence.

  1. 1865 Mormon pioneers settle St. Thomas on the Muddy River; it grows into a freight stop between Utah and California, peaking around 500 people.
  2. 1870s Nevada establishes that the settlement lies within its borders and demands back taxes. Many residents leave, burning buildings behind them. The town is later resettled.
  3. 1928 President Coolidge signs the legislation authorising construction of the Hoover Dam.
  4. 1935 The dam impounds the Colorado; Lake Mead begins to fill and the water starts rising toward St. Thomas.
  5. June 11, 1938 Hugh Lord, the last resident, sets fire to his house and rows away. St. Thomas is abandoned.
  6. 1945 St. Thomas resurfaces for the first time; former residents hold a reunion in the ruins.
  7. July 21, 1948 A B-29 Superfortress testing a classified sun-tracking missile guidance system crashes into the Overton Arm. All five crew survive; one is pulled from the sinking aircraft through a cockpit window. They are ordered not to discuss the flight.
  8. 1962 The town emerges again and remains above water for roughly nine years.
  9. c. 1972–2002 St. Thomas stays submerged for three decades.
  10. 2001 A private dive team locates the B-29 wreck at about 280 feet using side-scan sonar, more than fifty years after the crash.
  11. 2002 St. Thomas re-emerges; another reunion is held.
  12. May 1, 2022 Boaters near Hemenway Harbor find a barrel containing human remains. The coroner rules the death a homicide by gunshot. The man is not identified.
  13. May 7, 2022 Remains found at Callville Bay are later identified as Thomas Erndt, who drowned in August 2002.
  14. July–August 2022 Remains are recovered near Boulder Beach; they are identified in April 2023 as Claude Russell Pensinger, missing since 1998.
  15. July 28, 2022 Lake Mead sets what was then a record low: 1,040.58 feet.
  16. October 17, 2022 A diver finds remains at Callville Bay; they are identified in March 2023 as Donald P. Smith, who drowned in April 1974. The death is ruled accidental.
  17. November 29, 2023 The FBI releases facial approximation images of the barrel victim, seeking public help with identification.
  18. August 7–8, 2026 Lake Mead passes its July 2022 record and reaches 1,040.34 feet — the lowest level since the reservoir was filled — at about 26.8% of capacity, falling daily. St. Thomas stands exposed again.

Full bibliography.

  1. August 2026 reporting on Lake Mead reaching its lowest recorded level — UPI and Las Vegas Review-Journal, August 7, 2026; ABC News and Fortune, August 7–8, 2026 — recording the surface passing the July 28, 2022 record of 1,040.58 feet and falling to 1,040.34 feet on August 8 at about 26.8% of capacity.
  2. U.S. Bureau of Reclamation and National Park Service data on Lake Mead elevation and storage.
  3. National Park Service, “St. Thomas, Nevada,” Lake Mead National Recreation Area, nps.gov — settlement history, abandonment, and the site today.
  4. Reporting on the repeated resurfacings of St. Thomas (1945, 1962, 2002) and the reunions held by former residents, including Mental Floss, “The U.S. Ghost Town That Periodically Rises Out of Lake Mead.”
  5. 8 News Now (Las Vegas), “Here's what we know about all of the remains found at Lake Mead” — the 2022 recoveries and identifications.
  6. CNN and Fox5 Las Vegas coverage of the FBI's facial approximation of the Hemenway Harbor barrel victim, November 29, 2023.
  7. CNN and CBS News reporting on the identifications of Thomas Erndt (August 2022), Claude Russell Pensinger (2022) and Donald P. Smith (2022).
  8. Wikipedia, “1948 Lake Mead Boeing B-29 crash,” and National Park Service, “The Story Behind the B-29 Bomber in Lake Mead” — the classified test flight, the crew, and the 2001 rediscovery.
  9. Clark County (Nevada) Office of the Coroner/Medical Examiner determinations on the recovered remains.
  10. Las Vegas Metropolitan Police Department public appeals regarding the unidentified barrel victim.
  11. Las Vegas Review-Journal and Las Vegas Sun coverage of Hugh Lord, the last resident of St. Thomas, who burned his house and rowed away on June 11, 1938.

Frequently asked questions.

What ghost town has emerged from Lake Mead?

St. Thomas, Nevada — a settlement founded by Mormon pioneers in 1865 on the Muddy River, in what is now the Overton Arm of the lake. It grew to around 500 people and served as a freight stop between Utah and California. It was abandoned in 1938 as the water rising behind the newly built Hoover Dam reached it. The ruins are now part of the Lake Mead National Recreation Area and can be walked when exposed.

Is this the first time St. Thomas has resurfaced?

No, and this is the detail most coverage leaves out. The town has come back at least three times before: in 1945, in 1962 (when it stayed above water for roughly nine years), and in 2002. Former residents held reunions in the ruins on each occasion. It was submerged from around 1972 until 2002. The current exposure is the latest turn of a cycle driven by rainfall and reservoir management, not a one-off event.

What was the body in the barrel found in Lake Mead?

On May 1, 2022, boaters near Hemenway Harbor found a rusted barrel exposed by falling water, containing human remains. The Clark County coroner determined the man had been shot and ruled the death a homicide; items recovered with the body placed the death decades earlier. He has never been identified. On November 29, 2023 the FBI released facial approximation images in an attempt to establish who he was. No identification has been made, and no suspect has ever been publicly named.

How many bodies have been found in Lake Mead?

Several sets of human remains surfaced in 2022 as the water dropped; contemporaneous reporting counted as many as six between May and that autumn. Three were identified: Thomas Erndt, who drowned in August 2002; Claude Russell Pensinger, missing since 1998; and Donald P. Smith, who drowned in April 1974 and whose death was ruled accidental. Only the barrel victim is a homicide, and only he is unidentified. For a reservoir that has been a major recreation site since the 1930s, a handful of drowning victims resurfacing during a record drawdown is expected rather than sinister.

Is there a plane at the bottom of Lake Mead?

Yes. A U.S. Army Air Forces B-29 Superfortress crashed into the Overton Arm on July 21, 1948 while testing a classified sun-tracking missile guidance system. All five crew survived — one was pulled from the sinking aircraft through a cockpit window — and were instructed to say nothing about the flight or its loss, so the details went unpublished for around fifty years. A private dive team found the wreck in 2001 at about 280 feet. The National Park Service protects it, and it may be dived only with approved operators.

Why is Lake Mead so low?

Prolonged drought in the Colorado River basin, combined with long-term over-allocation of the river's water. On August 7, 2026 the surface fell past the previous record low of 1,040.58 feet, set in July 2022, and by August 8 stood at 1,040.34 feet — the lowest since the reservoir was filled. It is holding about 26.8 per cent of capacity, more than 188 feet below full pool, and has dropped every day since July 31. The discoveries are a straightforward consequence: things lost or placed in shallow water became inaccessible when the reservoir filled and are becoming accessible again as it empties.

What else is under Lake Mead?

No complete survey exists. Known to be present are the ruins of St. Thomas, the 1948 B-29, and an unknown number of sunken boats, vehicles and structures accumulated over ninety years of use. The B-29 sat undiscovered for fifty-three years until a private team went looking for it with sonar, which is a reasonable indication of how much of the lakebed remains unexamined.

Can you visit the Lake Mead ghost town?

Yes, when it is exposed. St. Thomas sits within the Lake Mead National Recreation Area and is reached by a marked trail from an access road near Overton, with foundations, cisterns and building footprints visible. Conditions are harsh — it is open desert with no shade — and the site is protected, so removing artefacts is prohibited.

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