Stefan Michalak, an industrial mechanic and amateur prospector from Winnipeg, reported a close encounter near Falcon Lake, Manitoba, on 20 May 1967. He was the sole witness to the objects he described. Police observed his burns and physical distress within days; subsequent searches and laboratory work produced a substantial investigation record. The injuries, delayed site examination and later sample recoveries belong to different stages of that record. Their connection to the reported object is the central issue in evaluating his account.
Industrial mechanic, amateur prospector and sole witness to the reported close encounter
The early account
In his recorded Royal Canadian Mounted Police (RCMP) interview on 24 May 1967, Michalak described two objects arriving while he worked a quartz vein. One remained airborne briefly and departed; the other settled on rock. He estimated its diameter at 35–40 feet and said it remained for roughly 45 minutes. He described colour changes, a smooth metallic surface and bright light from an opening. Hearing what he took to be human voices, he initially thought of an American vehicle and addressed its presumed occupants in several languages.
Michalak said the opening closed, the object began turning and heat from a grille struck him as it departed. He described damaged gloves, burning clothing, nausea and vomiting. His mechanical comparisons explain how he interpreted unfamiliar features; his distances and performance estimates were observations made without independent measurement. The transcript also preserves uncertainty about duration and speed, which later numerical retellings can obscure.
Evidence review
The first police inquiry gives the injury report an early independent record. Officers who visited on 23 May described a blotchy red burn across his abdomen and chest, physical discomfort and difficulty moving. They examined damaged clothing. Their 26 May report states that checks of his undershirt, cap and burned skin found no radioactive material. These observations corroborate an injured witness and damaged belongings soon after the report; the officers had no direct access to the event in the bush.
His family doctor, R. D. Oatway, summarised first-degree burns in a letter dated 19 September. He recorded nausea, poor appetite and weight loss, followed by recovery. Nuclear-medicine checks of the burn, clothing and blood apparently found no radioactivity. Hunt's September memorandum records Dr. F. Helmut's judgement that the injuries were thermal burns. The surviving evidence therefore gives no basis for presenting radiation sickness as an established diagnosis. Oatway also regarded a September episode of generalised urticaria as unrelated to the initial burn; separate skin complaints should not be folded into one recurring injury without their clinical records.
The alcohol inquiry concerns a contradiction in reporting rather than an established cause of the encounter. Michalak denied drinking the previous evening. Hotel testimony recorded in June described serving him several beers, although police challenged the employee's stated timing against Michalak's bus journey. Witnesses to his conduct the following afternoon described apparent intoxication while reporting no smell of liquor. Their impressions require attention, but the records provide no measured alcohol level or demonstrated mechanism connecting drinking to his burns.
Reproduced archival scan; all five pages inspected. Early observations of the witness, clothing and contamination checks, with the highway officer's account.
Reproduced six-page report; all pages inspected. Search chronology, examination of conflicting hotel testimony and the decision to conclude the file pending site identification.
Reproduced archival scan. Pages 1 and 4–8 inspected for recovery provenance, the late July visit, site discrepancies and the investigator's conclusion.
Reproduction of Library and Archives Canada RG77, volume 311. Bissky's report and supplement (PDF pages 19–21 and 49–50), and Oatway's signed 19 September medical letter (page 59), inspected as scans. Oatway dates the burn to 21 May, while the event record gives 20 May. The host's summaries are separate from these records.
Reproduced five-page government memorandum; all pages inspected. Documents the localised contamination, source inquiries, medical consultation and public-hazard conclusion.
NCAS transcription of the Colorado project's published investigation by Roy Craig. Used for its retrospective assessment and its reproduced NRC metal-analysis findings; original laboratory worksheets were not inspected.
Retrospective interviews with Stan Michalak, Chris Rutkowski and Palmiro Campagna. Later interpretation and family history; archival hosting does not turn participants' conclusions into a 1967 government finding.
Injury, contamination and the reported object
Relocating the site was a substantive investigative problem. Early searches found landmarks Michalak had mentioned without identifying the encounter location. After he and Gerald Hart reported success in late June, police objected that material had been removed despite their instruction to leave it for examination. In the August report, Corporal C. J. Davis recorded the late July official visit: the location was only 40–50 yards from a rock used during the unsuccessful June search, with trees and brush blocking the view. This explains how searchers could have passed close by. Davis nevertheless found the area smaller and less open than described, and recorded a conflict between the claimed compass bearing and the opening through which Michalak then said the object had flown.
Officials observed an incomplete circle of cleared moss on the rock, approximately 15 feet across. Davis found no indication of brushing or raking, while retaining that possibility. Bissky proposed a high-velocity airflow; Hunt considered the outline's origin debatable. These are interpretations of a physical feature inspected more than two months after the reported event. The circle had no documented condition immediately before or after 20 May, so its shape alone cannot establish when or how it formed.
Hunt's investigation established radioactive contamination on rock and lichen in a very small area. His survey found no contamination around the circle's perimeter or in water-runoff areas. Ultraviolet examination indicated radium luminous paint in site samples; his final conclusion left the contamination's origin undetermined and found no radiation hazard to the general public. He also investigated potential terrestrial sources, including Michalak's workplace. The case contains a real contamination finding, with an unresolved provenance. The later survey supplies no exposure measurement for Michalak on 20 May.
The metal reported recovered in 1968 belongs to a later evidential chain. The Colorado report reproduces the National Research Council's finding that the silver itself was not radioactive: radioactive minerals formed an external layer. Its investigator, Roy Craig, questioned how substantial pieces could have escaped earlier searches. In the 2019 Library and Archives Canada discussion, Chris Rutkowski also described uranium ore attached to silver and raised possible enhancement of the case. The original recovery was outside official supervision. Neither the material's composition nor its location as reported establishes that it came from the object Michalak described.
The official records preserve unresolved injuries and contamination alongside specific reasons for doubt. The Colorado investigation judged the case insufficient as evidence of an unconventional craft, while Davis's August report left the physical aftermath unexplained and awaited further laboratory work. Their different conclusions reflect the propositions they assessed. A cause for the injuries and an origin for the contamination remain absent from this inspected record. Combining them into a single technological explanation requires a demonstrated connection across the original encounter, the delayed site discovery and the later recoveries; that connection is the central evidential weakness.
Key dates
20 May 1967
Michalak reports the encounter near Falcon Lake and seeks assistance after leaving the bush.
23–26 May 1967
Police interview him, record his account and describe burns, damaged clothing and negative contamination checks.
Late May–early June 1967
Air and ground searches, including guided returns, fail to identify the site.
Late June 1967
Michalak and Hart report finding the location and remove material. Police record concern over disturbance of the scene.
Late July 1967
An official party reaches the site. Investigators inspect the moss circle, take photographs and identify localised contamination.
13–19 September 1967
Hunt completes the radiation-hazard memorandum; Oatway provides a summary of treatment and later symptoms.
1968
A later claimed metal recovery is analysed and discussed in the Colorado project's case report.
15–29 May 2019
Library and Archives Canada publishes retrospective interviews with Michalak's son and researchers; they distinguish family recollection and subsequent analysis from the contemporary file.
Reproduced archival scan; all five pages inspected. Early observations of the witness, clothing and contamination checks, with the highway officer's account.
Reproduced six-page report; all pages inspected. Search chronology, examination of conflicting hotel testimony and the decision to conclude the file pending site identification.
Reproduced archival scan. Pages 1 and 4–8 inspected for recovery provenance, the late July visit, site discrepancies and the investigator's conclusion.
Reproduction of Library and Archives Canada RG77, volume 311. Bissky's report and supplement (PDF pages 19–21 and 49–50), and Oatway's signed 19 September medical letter (page 59), inspected as scans. Oatway dates the burn to 21 May, while the event record gives 20 May. The host's summaries are separate from these records.
Reproduced five-page government memorandum; all pages inspected. Documents the localised contamination, source inquiries, medical consultation and public-hazard conclusion.
NCAS transcription of the Colorado project's published investigation by Roy Craig. Used for its retrospective assessment and its reproduced NRC metal-analysis findings; original laboratory worksheets were not inspected.
Retrospective interviews with Stan Michalak, Chris Rutkowski and Palmiro Campagna. Later interpretation and family history; archival hosting does not turn participants' conclusions into a 1967 government finding.