Oyg's Map of
Crystalmir Lake {5-45}

                Thrull  
                   1
                   |
                d<-a->e
                   |
                c<-b->f
                   |
        a<-e---+---c->b
           |   |   |     +o-+
           |   |   |     |               |   |   |   |   |   
        b<-f---+---d->a  +--+      +--+--+---+---+---+---+   
+--+       |   |   |    /   o      |     |   |   |   |   |   
   |       |   |   +x--+    +    + +     |   |   |   |   |   
   +---+---+---+	         |     --+---+---+---+---+-- 
   |   |   |   | 	         +       |   |   |   |   |   
   |   |   |   | 	         |       |   |   |   |   |   
+--+---+---+---+                 +---+---+---+---+---+---+   
   |   |   |   |         +       |       |   |   |   |   |   
   |   |   |   |        /        +       |   |   |   |   |   
   +---+---+---+---+---+               --+---+---+---+---+-- 
   |   |   |\  |   |   |                 |   |   |   |   |   
   |   |   | \-=---=---=-----------------=---=-\ |   |   |   
   |   |   |   |   |   |                 |   |  \|   |   |   
   +   +---+---+---+---+                 +---+---+---+---+--+
   |       |       |   |                 |   |   |   |   |   
   |       +       |   |
   |       |       |   |
   +--+--+-=--+----+---+
           | /
           |v
           +
           |
           2
       Crystalmir  
         River  

1 = Thrull {1-50}
2 = Crystalmir River {all}