1. Hoover Dam Site Identifier: CAC_CC_053_4_0000_1_8 Contributing Institution: Carl Albert Congressional Research and Studies Center, University of Oklahoma, Norman, OK Collection: John William "Elmer" Thomas Collection Title: Hoover Dam Site Date: 1939-01-01 Creator: unknown Topic: Water resources development--United States, WaterwaysUnited States Congress: 76th (1939-1941)
![["Geological map by the U.S. Geological and Power surveys, featuring handwritten annotations of reservoirs and fault lines in the Nevada-Arizona area, specifically St. Thomas. Dimensions: 16 1/2 x 20"]](https://jones-2.s3.us-east-1.amazonaws.com/John%20William%20Elmer%20Thomas%20Collection%2FMaps,%20CAC_CC_053_4_0000_0000_0000%2Fthumbnails%2FCAC_CC_053_4_0000_1_8_thumbnail.jpg "Hoover Dam Site")