735A1712: Tree in front of dunes at Great Sand Dunes National Monument

Note on envelope reads, "Dr. Cross' horizontal well. Horse auger".

2016-08-03
2016-08-03

735A1713: Roots and twigs growing at edge of water

Note on envelope reads, "Dr. Cross' horizontal well. Horse auger".

2016-08-03
2016-08-03

735A1714: Rocks surrounding dry ponds

Note on envelope reads, "Dr. Cross' horizontal well. Horse auger".

2016-08-03
2016-08-03

735A1715: Great Sand Dunes National Monument showing empty Medano Creek bed in...

Note on envelope reads, "Dr. Cross' horizontal well. Horse auger".

2016-08-03
2016-08-03

735A1716: Three men next to drilling rig and pickup truck

Note on envelope reads, "Dr. Cross' horizontal well. Horse auger".

2016-08-03
2016-08-03

735A1304: "Rohwer" - man with drilling rig, South Dakota

Note on envelope reads, "Well drilling South Dakota".

1937-08-21
2016-08-03
2016-08-03

735A1717: Badly eroded bank of reservoir or spillway channel

Note on envelope reads, "Dr. Cross' horizontal well. Horse auger".

2016-08-03
2016-08-03

735A1718: Layers of exposed rock

Note on envelope reads, "Dr. Cross' horizontal well. Horse auger".

2016-08-03
2016-08-03

735A2001: Two men operating drilling rig

Note on envelope reads, "Irrigation wells". Building under construction in background

2016-08-03
2016-08-03

735A2002: "Heavy-duty jetting rig used in drilling deep test wells"

Title information from "Putting Down and Developing Wells for Irrigation" by Carl Rohwer. See Figure 7. Note on envelope reads, "Irrigation wells".

2016-08-03
2016-08-03

735A2006: "California rig drilling well with standard tools and mud scow"

Title information from "Putting Down and Developing Wells for Irrigation" by Carl Rohwer. See Figure 19. Note on envelope reads, "Irrigation wells".

2016-08-03
2016-08-03

735A2007: "Drilling 30-inch well in clay with an earth auger"

Title information from "Putting Down and Developing Wells for Irrigation" by Carl Rohwer. See Figure 13. Note on envelope reads, "Irrigation wells". Two haystacks standing directly behind derrick in field

2016-08-03
2016-08-03

735A2012: "Red iron stovepipe casing in sections 20 inches in diameter and 4 feet long"

Title information from "Putting Down and Developing Wells for Irrigation" by Carl Rohwer. See Figure 22. Note on envelope reads, "Irrigation wells".

2016-08-03
2016-08-03

735A1306: Car parked on shoulder of dirt road winding through rock spires in the Black...

Note on envelope reads, "Well drilling South Dakota". Image is a double exposure.

2016-08-03
2016-08-03

735A1307: Rock spire formations rising above trees in the Black Hills, South Dakota

Note on envelope reads, "Well drilling South Dakota".

2016-08-03
2016-08-03

735A1308: Man standing next to drilling rig, South Dakota

Note on envelope reads, "Well drilling South Dakota".

2016-08-03
2016-08-03

735A1309: The Needles, Custer State Park, South Dakota

Note on envelope reads, "Well drilling South Dakota".

2016-08-03
2016-08-03

735A1310: Cars on road through The Needles, Custer State Park, South Dakota

Note on envelope reads, "Well drilling South Dakota". Dirt road is now known as the Needles Highway (South Dakota Highway 87).

2016-08-03
2016-08-03

735Aa01: "A six-foot curb 10 ft long made by H.E. Albrant. 2 x 6-inch lumber. On N.E. 4...

Man, possibly H.E. Albrant, standing next to wooden well casing

1929-02-05
2016-08-17
2016-08-17

735Aa09: "Some of Brewers casing at Greeley"

Well casing segments are vertical slot screens

1935-05-15
2016-08-17
2016-08-17

735Aa10: "Brewers casing"

Well casing segment is a vertical slot screen

2016-08-17
2016-08-17

735Aa11: "An incrusted casing removed from the well of Gine Mauro Vineland. About 9' of...

2024-04-29
2016-08-17
2016-08-17

735Aa1402: "Perforating 14-inch well casing with acetylene torch. The sections of...

Title information from "Putting Down and Developing Wells for Irrigation" by Carl Rohwer. See Figure 38.

2016-08-17
2016-08-17

735Aa1501: "30 inch blank casing used in drilling Bartels well - 12 inch wet suction...

Second print caption reads, "Frank Bartels well. Stephenson driller 30 inch blank casing."

1941-03-20
2016-08-17
2016-08-17

735Aa1502: Wooden well casing in front of sawhorse and car

2016-08-17
2016-08-17