# Dudinka Troposcatter Facility, USSR (NPIC Basic Imagery Interpretation Report, February 1969)

Compiled by [Robin Monks](https://coldwar.tech/about), a Cold War archival expert.

*The February 1969 NPIC imagery report on the Dudinka troposcatter facility, closing the three-document arc of the CIA's hunt for the Soviet Arctic TRRL Sever line.*

## Metadata

| Field | Value |
|-------|-------|
| Document Type | declassified |
| Creator | National Photographic Interpretation Center (NPIC) |
| Date | 1969 |
| Classification | Top Secret (declassified) |
| Document ID | RCA-03/0011/69 |
| Original Language | english |

The third act of the arc that began with the [empty-handed 1965 search](https://coldwar.tech/archive/documents/cia-troposcatter-search-1965): by February 1969 the National Photographic Interpretation Center could publish a Basic Imagery Interpretation Report on the troposcatter facility at Dudinka itself, the one town of the original three that the [March 1966 count](https://coldwar.tech/archive/documents/cia-troposcatter-types-1966) had not yet caught. Three pages, filed under “Deployed Comm/Elec/Radar Facilities, USSR.”

Taken together, the three documents are a time-lapse of intelligence catching up with construction: a tip in 1965, a fifteen-site inventory in 1966, a routine per-facility report by 1969. By then the Север line was operational and Dudinka was just another entry in the deployed-facilities file.

Source: [CIA FOIA Reading Room](https://www.cia.gov/readingroom/document/cia-rdp78t04563a000100010027-3) ([archived](https://web.archive.org/web/2026/https://www.cia.gov/readingroom/document/cia-rdp78t04563a000100010027-3)). Public domain as a US government work; declassification by NGA/DoD.

## Related

- [Tropospheric Scatter Communications](https://coldwar.tech/technologies/troposcatter) (Technologies)

Tags: NPIC, troposcatter, TRRL Sever, Dudinka, imagery intelligence, declassified, 1969

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Canonical URL: https://coldwar.tech/archive/documents/npic-dudinka-troposcatter-1969
Last updated: 2026-07-15