Photo and copyright by Edith H. Tracy 

 THE DEEPEST PART OP CULEBRA CUT 



Looking south from the west bank of the canal, near Contractor's Hill, Cucaracha slide 

 shows on the left side of the picture. Some 10 million pounds of dvnamite have been ex- 

 ploded in Culebra and enough material removed to make 26 pyramids, each as large as the 

 Great Pyramid of Cheops, in Egypt, or 2,500 shafts, each as large as the Washington Monu- 

 ment. 



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