# Ground, air and underwater searches of the zone in 1971 and 1972 found nothing.

> Ground, air and underwater searches of the zone in 1971 and 1972 found nothing.

Source: https://mysteriesdept.com/mysteries/db-cooper/evidence/EVD0D6SXGM05P5K/ground-air-and-underwater-searches-of-the-zone-in-1971-and  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Hijacking of Northwest 305 (D. B. Cooper)](https://mysteriesdept.com/mysteries/db-cooper)Evidence

Evidence · Hijacking of Northwest 305 (D. B. Cooper)

# Ground, air and underwater searches of the zone in 1971 and 1972 found nothing.

Ground, air and underwater searches of the zone in 1971 and 1972 found nothing.

Supported0

## What it bears on 1 answer

[He landed near Ariel and Lake Merwin, where the FBI's flight-path map and the 8:13 pm pressure bump put the…](https://mysteriesdept.com/mysteries/db-cooper/answers/ANS0D6SXFWJ33G4/he-landed-near-ariel-and-lake-merwin-where-the-fbis-flight)

Most likely

AGAINST

## Cite it

```
Mysteries Department. (2026). Ground, air and underwater searches of the zone in 1971 and 1972 found nothing. [Evidence EVD0D6SXGM05P5K]. https://mysteriesdept.com/r/EVD0D6SXGM05P5K
```

Key

**EVD** 0D6SXGM05P5K

Kind

Evidence

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Supported

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1

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