Laguna Dam from left bank

Approaching the Laguna Dam from left bank of the Colorado River.

St. Francis Dam

Water exiting the spillway of the St. Francis Dam.

Colorado River--"Mohave Rock"

A large rock formation on the Colorado River.

Yuma Project--General View--Laguna Dam

The construction of the Laguna Dam on the Colorado River.

Yuma Project, Arizona--Laguna Dam From California Side

The Laguna Dam on the Colorado River.

Gates to the settling basin of Laguna Dam

The gates to the settling basin of the Laguna Dam on the Colorado River, part of the Yuma Project of the United States Reclamation Service.

Views Pertaining to Spies Canal

Spies Canal near the site of the Laguna Dam.

Outlet of siphon under Colorado River at Yuma

The outlet siphon under the Colorado River at Yuma, Arizona, part of the Yuma Project of the United States Reclamation Service.

Alfalfa Field Sec. 31, T.16S., R.13E

An alfalfa field near the Imperial Canal system..

West from a point on the high line above Moronga Valley. The distant peak in the right...

The Mojave Desert west of Morongo Valley, California, with San Gorgonio Mountain in the distance.

No. 2 in Panorama of Big Chemehuevis Valley--Looking Upstream

Big Chemehuevis Valley on the Colorado River; this photograph forms a panorama with WRCA LIPP Box 82, Item 145, #949 and WRCA LIPP Box 82, Item 145, #951.

St. Francis Dam Ruins

The ruins of the St. Francis Dam after its collapse.

St. Francis Dam Ruins

The ruins of the St. Francis Dam after its collapse.

Looking upstream into Boulder Canyon

Approaching Boulder Canyon on the Colorado River.

St. Francis Dam Ruins

The base of the center section of the St. Francis Dam--nicknamed "The Tombstone"--that remained standing after the dam's collapse.

Las Vegas Wash between Boulder and Black Canyons

Unidentified members of the river survey group, both aboard a small boat and on shore, at Las Vegas Wash, between the Boulder and Black Canyons, on the Colorado River.

St. Francis Dam Ruins

Aerial of the ruins of the St. Francis Dam after its collapse.

Black Canyon Dam site, looking downstream

Passing through the site of the proposed Black Canyon Dam on the Colorado River.

St. Francis Dam Ruins

The ruins of the St. Francis Dam after its collapse.

Bottom Lands and Distant Mesa Lands Showing Debris Cones Along Edge of Mesa--1/2 Mile...

Debris cones along the edge of mesa and bottom lands, 1/2 mile east of Fort Mojave, Arizona

Colorado River--Overflow Below Yuma

A small house sitting near overflow from the Colorado River.

Yuma Project--Drop in Ludy Canal 1 1/4 miles South of Flume No. 2--Showing Eroded...

The Ludy Canal near the Colorado River.

St. Francis Dam Ruins

The base of the center section of the St. Francis Dam--nicknamed "The Tombstone"--that remained standing after the dam's collapse.

Colorado River--Red Canyon

Red Canyon on the Colorado River.

Engineers Towing Boat up Imperial Canal Above Heading No. 3, Mexico

A group of unidentified engineers tow a small boat near the third heading of the Imperial Canal in Mexico.