In contrast to former mighty floods that once turned the Colorado River into a muddy brown torrent through Black Canyon, the waters now flow in needed volume through tunnels within the canyon walls
Made/Created
Notes
Date: 1930-1945
Original or Copy: Original
Lexicon
Nomenclature 4.0
Nomenclature Primary Object Term
Postcard
Nomenclature Sub-Class
Writing Media
Nomenclature Class
Written Communication T&E
Nomenclature Category
Category 06: Tools & Equipment for Communication
Search Terms
Hoover Dam, Colorado River, Black Canyon
Other Names and Numbers
Other Number
Negative No.: N/A
Dimensions
Dimension Notes
Printsize: (3 1/2 x 5 1/2)
Location
Location
* Untyped Location
Research room
Date
May 6, 2026
Provenance
Notes
Boulder Dam Service Bureau, Boulder City, NV.
General Notes
Note
Notes: color penny postcard; check original for the remaining description
June 2015 PastPerfect Conversion
