This collection includes advertisements, proposals, and specifications of projects conducted within the United States Department of the Interior, U.S. Geological Survey, Reclamation Service. The projects held in this collection were within the western United States from 1904 until 1915.

The projects are numbered and arranged by their number. This collection is comprised of projects 1-298. There are some of these projects not included within this manuscript collection, specifically: 2-47, 53, 55, 103, 105, 114-115, 154, 156-157, 159, 161-164, 166-168, 170, 172, 174, 178-181, 183-188, 190-191, 195, 198-200, 202, 206, 210-213, 217-219, 235-238, 244-245, 247, 250-258, 267-268, 270-274, 276-279, 292, 294, and 297. Photographs were removed to photo collection P0104.