205 



Sand dunes and ridges at Dune Park, Ind. Some vegetation finds a footing on the sides and 

 in the swales. 



CROSlSlNG-. 



Buildin;;.- of ihu ,-:;and Brn/k and liuildiny. Block Co., l(jratrd in ili'' -ouilna.-' corner of 

 Hoosier Slide. Raw material is close at hand and with natural transportation renewing the 

 supply. 



