Dugway Drop

Coast & Geodetic Survey Dugway Records

This archive contains records released through a NOAA FOIA request relating to U.S. Coast & Geodetic Survey survey work conducted at Dugway Proving Ground between 1947 and 1952.

The documents concern measurement instrumentation and spirit level observations associated with underground explosive testing programs during the early Cold War period.

Included in the release are survey instructions issued in April 1948, precise measurement reports, and multi-volume survey records documenting the establishment of benchmarks and observation lines at Dugway.

These materials provide primary-source documentation of geodetic survey work supporting underground blast measurement experiments conducted at the proving ground.

Source NOAA FOIA
Published 2026-03-05

What this drop contains

This packet contains primary materials released by the originating agency or compiled in the source file. Agency releases may be separated into individual incident or document files for easier access and citation. Page order and document content are otherwise preserved as received, apart from privacy redactions. Any omissions present in the agency-produced records are noted where applicable.

Originating Records Request

The request that generated this release. Included for provenance and scope.

Records Request
Coast and Geodetic Survey Dugway Records FOIA
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Agency Responses

Official correspondence and response material associated with this release.

Response
NOS_IR Full Grant DOC-NOAA-2026-001043
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Released Materials

Primary materials released by the originating source, including documents, media, and related files.

Report
Memo Instructions (19 April 1948)
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Report
Report Precise Measurements
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Report
Volume 1
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Report
Volume 2
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