A Collection Of Stone Books

Walking quietly here, each wonder in sight becomes a window through which other windows come to view. In no other part of this continent are the wonders of geology more widely opened, or displayed in higher piles. The whole canyon is a mine of fossils, in which five thousand feet of horizontal strata are exposed in regular succession over more than a thousand square miles of wall-space forming a grand geological library--a collection of stone books covering thousands of miles of shelving tier on tier conveniently arranged for the student. And with what scriptures are their pages filled, carrying us back into the life of a past infinitely remote.
--John Muir