River Gravels Resting on Granite, West of Bulls Head Dam Site No. 2 (#1 of Panorama)

Loose rock sitting on granite by the Colorado River west of the proposed site of the Bulls Head Dam.; this photograph forms a panorama with WRCA LIPP Box 82, Item 145, #1025.

Drop (#3?)--All American Canal

Possibly the third drop of the All American Canal.

No. 1 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, #950 and WRCA LIPP Box 82, Item 145, #951.

Steamer St. Vallier alongside brush dike at Heading No. 3, Imperial Canal

A steamboat on the Imperial Canal.

Waste Weir--Dam Site Above "Pot Holes," California

A waste weir at the potential site for a dam (possibly Laguna Dam) above the now-abandoned Potholes placer-mining area in Imperial County, California.

Colorado River--Corn Growing on Bottoms Below Yuma

A corn field near Yuma, Arizona on the Colorado River.

Yuma Project--Drop 1 1/4 miles South of Flume No. 2--Showing Character of Construction

The Ludy Canal near the Colorado River.

Party reembarking after hike across sand bar at Las Vegas Wash between Boulder and...

Unidentified members of the river survey group climb aboard a small boat 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 base of the center section of the St. Francis Dam--nicknamed "The Tombstone"--that remained standing after the dam's collapse.

St. Francis Dam Ruins

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

Flooded Lands Along Imperial Canal, South of Heading No. 3 in Mexico

Flood conditions on the Colorado River, near the third heading of the Imperial Canal in Mexico.

St. Francis Dam Ruins

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

Colorado River Bottoms

The shallows of the Colorado River.

Colorado River--Diamond Drill Rig on Colorado River 1/2 Mile Below Bulls Head Dam Site...

An unidentified group of men standing on a diamond drilling rig on the Colorado River, near the site of the proposed Bulls Head Dam.

Crossing of Ludy and Farmers Canals, Yuma Valley, Arizona

An unidentified group of men with horse and wago standing near a small wooden bridge that crosses the ludy and Farmers Canals in Yuma Valley, Arizona.

St. Francis Dam Flood Damages

Flood damages caused by the collapse of the St. Francis Dam.

Colorado River--The Boat

An unidentified group of men on a small sailboat in the Colorado River.

Looking downstream at Bull's Head Dam site

Approaching the site of the proposed Bulls Head Dam on the Colorado River.

St. Francis Dam Flood Damages

Flood damages caused by the collapse of the St. Francis Dam.

Drop at Junction with Coachella Canal--All American Canal

The junction of the All American Canal with the Coachella Canal.

Contrast Between Reclaimed and Desert Land Below Yuma, Arizona

A fence line dividing irrigated land from desert below Yuma, Arizona.

Mouth of Black Canyon

Black Canyon on the Colorado River.

Bridge of Santa Fe Railroad across Colorado River near Topoc

A Santa Fe Railroad company trestle spanning the Colorado River, near Topock, Arizona.