When Obsession Pays Off

That dedication has paid off for one of the profiled photographers, Michael Collier, who has been documenting geology with aerial photos for nearly 30 years. A book of his work, Over the Rivers: An Aerial View of Geology will be out in October (Mikaya Press, $35)

That dedication has paid off for one of the profiled photographers, Michael Collier, who has been documenting geology with aerial photos for nearly 30 years. A book of his work, Over the Rivers: An Aerial View of Geology will be out in October (Mikaya Press, $35)