Caption says, "A-271 Blasting on highway cut, Station 66+50. 1,700 pounds of 60% gelatin powder were used in 107 holes of an average depth of 16 feet. Firing order: holes grouped in 21, 36, and 50. Picture taken from rock point northwest of Station 66+50."

Caption says, "A-272 Telephoto picture from rock point northwest of Station 66+50, showing effects of blast."

Caption says, "A-273 Close-up of shattered rock in highway cut after the blast."

Caption says, "A-274 Looking south showing rock piled in railroad cut in foreground by the blast placed in highway cut above."

Caption says, "Altus Project - Altus, Oklahoma. Dikes, Lugert - No. A-190 Grouting crew in cutoff trench at north end of dike."

Caption says, "Altus Project - Altus, Oklahoma. Dikes, Lugert - No. A-189 Grouting crew in cutoff trench at north end of dike."

Caption says, "Altus Project - Altus, Oklahoma. Dikes, Lugert - No. A-191 Grouting cutoff trench at north end of dike."

Caption says, "Altus Project - Altus, Oklahoma. Dikes, Lugert - No. A-185 Cross section of soil at south end of Borrow Area No. 1. Strip of paper below and right of hat, reddish colored shale outcrop. Strip of paper near top of cut is normal bank height."

Caption says, "Altus Project - Altus, Oklahoma. Dikes, Lugert - No. A-192 Applying pressure test to grout hole in cutoff trench at north end of dike."

Caption says, "Altus Project - Altus, Oklahoma. Dikes, Lugert - No. A-193 Releasing pressure on test of grout hole in cutoff trench at north end of dike."

Caption says, "Altus Project - Altus, Oklahoma. Dikes, Lugert - No. A-187 Cross section of soil at northwest end of Borrow Area No. 1 Strip of paper by hat near top of cut is normal bank height; strip of paper below hat (center picture) indicates where yellow shale outcrops."

Caption says, "Altus Project - Altus, Oklahoma. Dikes, Lugert - No. A-186 Cross section of soil at southwest end of Borrow Area No. 1. Strip of paper above tread track (center picture) indicates where blue shale outcrops. Strip of paper near top of cut is normal bank height."

Caption says, "Altus Project - Altus, Oklahoma. Dikes, Lugert - No. A-188 A crew of W.P.A. laborers digging the toe drain."

Caption says, "A-329 Lugert Dike, upstream side, 100 feet upstream from upstream toe, station 25 to station 10. Taken from roof of Lugert Dike field station."

Caption says, "A-333 Carryall scraping dirt in Borrow Area west of Station 24, Lugert Dike, for fill on Lugert Dike.

Caption says, "A-332 Carryall dumping fill material on Lugert Dike, Station 24."

Caption says, "A-331 Euclid truck dumping fill material on Lugert Dike, Station 24+50."

Caption says, "A-334 Lima shovel in Borrow Area No. 1, east of haul road and south of Highway 44."

Caption says, "A-330 Euclid truck coming down ramp of Lugert Dike, Station 25."

Caption says, "A-14 Altus Project. Photograph showing excavation of foundation for the shop building. W. P. A. men are placing forms for concrete."

Caption says, "A-16 Altur Project. W. P. A. and N. Y. A. men ready to pour this materials into the hopper for the concrete mixer. Their mix used here was 1-2. 77-3.88."

Caption says, "A-13 Altus Project. Pouring concrete casing around Altus city water main under warehouse building site. In order to preserve permanently the water main, which is of wooden construction, concrete is poured around it forming a permanent concrete casing. The main travels in a southeasterly direction under the east section of the warehouse. Mr. Byrnes is supervising the pouring. A. W. P. A. vibrator was used when this photograph was taken."

Caption says, "A-15 Altus Project. Photograph showing the wire fence being constructed around the warehouse and shop building area. Style being used temporarily as means for crossing the woven wire fence on south side of building area."

Caption says, "A-17 Altus Project. N. Y. A. boys weighing out sand for concrete. From left to right are Duncan, Coffey, Cupp, and Anstead. These N. Y. A. students are acting as laboratory assistants."