Unknown
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Active leadUseful case file with unresolved ambiguity and room for more corroboration.

"Mystery Stalks the Prairie" by Roberta Donovan and Keith Wolverton, pages 70-72, Montana, USA: "...a Simms rancher reported that his wife and children had seen a UFO land near the place where he had left a dead calf. He later discovered that the carcass had been mutilated after he placed it there."

UnknownSighting reportJun 29, 2026, 10:28 AMSimms Ranch

Witnesses

Unknown

Duration

Unknown

Source material

3

Timeline

1

Source context

Limited context

41

Interesting, but still missing stronger corroboration or harder source material.

Source provenance

r/UAP

Live sighting record 4743de55-2ba1-4066-b6c7-960ed6ae29cb.

Using the selected case's real source, media, and context throughout the workspace.

Correlations

Field Intelligence

Sunlight window

Daytime — sun above horizon

Sighting occurred during daylight hours

Solar window

Sunrise6:01 AM
Sunset8:36 PM
Day length14h 34m

Weather

Open-Meteo
ConditionsOvercast
Temperature72°F
Cloud cover100% · Overcast
Wind5 mph

Area activity

Within 2 daysNo sightings within 60 mi

Context notes

Heavy cloud cover (100%) — limited visibility

Extracted details

Observed facts

Occurred

Jun 29, 2026, 10:28 AM

Timezone

Eastern Time

Location

Simms Ranch

Witness account

Narrative

submitted by /u/throwaway16830261

Case progression

Timeline

PublishedJun 29, 2026, 10:28 AM

r/UAP carried the report into the source network.

Ledger

Source material

media

Cover image

Open

Visual reference carried with the original report.

source

Original report

Open

Direct source material from r/UAP.

telemetry

Environmental pass

Historical atmosphere, astronomy, and nearby infrastructure were resolved for this case.