Figure 1. Spring Basin. Water from the spring enters the gully 

 ( shown in Figure 2) at the left of A. A glacial conglomerate is exposed 

 beneath the rail fence at the man's right and just outside the foreground. 



Figure 2. Gully cut through east edge of tufa deposit. The bank 

 at the left is white with the calcareous dust, and fragments of tufa he 

 among the sticks at the bottom. 



