Fig. 4.10 Cloud
formations differentiating a
mountain boundary. View
west toward the Sangre de
Christo Mountains,
Colorado. Photograph by
Lev Ropes
Fig. 4.11 The elevation of
major mountain areas is
generally independent of
latitude
Fig. 4.12 Vertical
zonation in different
ecoclimatic zones along the
eastern slopes of the Rocky
Mountains in North
America. From
Schmithu ¨sen (1976), p. 70
34
4 Continental Types and Their Controls