Materials Engineer Mr. Holtz

Caption says, "A-373 Dikes, North. Mr. Holtz, materials engineer, showing point where clay was struck in excavation operations in the cutoff trench, Station 3."
Date: October 3, 1941
Creator: Breitenstein, Frank C.
System: The Gateway to Oklahoma History

Rainwater in Cutoff Trench

Caption says, "A-372 Dikes, North. North along cutoff trench, from Station 3. Rainwater in bottom of trench."
Date: October 3, 1941
Creator: Breitenstein, Frank C.
System: The Gateway to Oklahoma History

Cutoff Trench

Caption says, "A-370 Dikes, North. Looking south along cutoff trench from Station 10 at North Dike."
Date: October 3, 1941
Creator: Breitenstein, Frank C.
System: The Gateway to Oklahoma History

Cutoff Trench

Caption says, "A-371 Dikes, North. Looking south along cutoff trench, from Station 7+00."
Date: October 3, 1941
Creator: Breitenstein, Frank C.
System: The Gateway to Oklahoma History