PHYSIOGRAPHY 



33 



Fig. 5 The north end of Runit Island with La Crosse crater (lower right) wnd the Cactus 

 Crater Crypt (upper left). La Crosse crater is about 120 m across and about 10 m deep. The 

 Cactus Crater Crypt was built in the crater to contain contaminated soil and debris. [Photo 

 by P. L. Colin.] 



Fig. 6 The island of Boken (north) with the Seminole crater, a small atomic bomb crater. 

 The island and adjacent islands In the foreground have been drastically altered by the forma- 

 tion of the crater. [Photo by P. L. Colin.] 



