# Himmelsbach 1986: NORJAK: The Investigation of D.B. Cooper

> Ralph P. Himmelsbach, Thomas K. Worcester, 1986. 4 records on Mysteries Department cite it. Cited for the Washougal reading's origin.

Source: https://mysteriesdept.com/sources/SRC0D6SWX30563T/norjak-the-investigation-of-d-b-cooper  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Sources](https://mysteriesdept.com/sources)[Hijacking of Northwest 305 (D. B. Cooper)](https://mysteriesdept.com/mysteries/db-cooper)Himmelsbach 1986

**0**

# NORJAK: The Investigation of D.B. Cooper

Ralph P. Himmelsbach, Thomas K. Worcester, 1986. _Norjak Project, West Linn, Oregon_.

The lead agent's account of the 1971 to 1980 investigation, including his preference for the Washougal River watershed as the landing area.

**Hijacking of Northwest 305 (D. B. Cooper)** Book0

## What it's used for here

Cited for the Washougal reading's origin.

## Cited by on this site 4 records

[He landed further east, in the Washougal River watershed, as Himmelsbach came to believe after a wind…](https://mysteriesdept.com/mysteries/db-cooper/answers/ANS0D6SXH3M7D1V/he-landed-further-east-in-the-washougal-river-watershed-as)

Answer

ANS

[Ralph Himmelsbach publishes NORJAK, the lead agent's account](https://mysteriesdept.com/mysteries/db-cooper/events/EVT0D6SX6BW5NVY/ralph-himmelsbach-publishes-norjak-the-lead-agents-account)

EVT

[Ralph Himmelsbach](https://mysteriesdept.com/mysteries/db-cooper/people/FIG0D6SX2PP6CS5/ralph-himmelsbach)

FIG

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

The mystery article

MYS

## Cite it

```
Himmelsbach, R. P., & Worcester, T. K. (1986). NORJAK: The Investigation of D.B. Cooper. Norjak Project, West Linn, Oregon.
```

[Find it at WorldCat](https://search.worldcat.org/search?q=NORJAK%3A+The+Investigation+of+D.B.+Cooper+Himmelsbach)

Key

**SRC** 0D6SWX30563T

Kind

Book

Rights

The publisher's

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