This and other Sierra glaciers transformed V-shaped valleys into U-shaped valleys with all the urgency of a tortoise taking a morning stroll.
(This and other Sierra glaciers; transformed; V-shaped valleys; into U-shaped valleys with all the urgency of a tortoise) (a tortoise; taking; a morning stroll)
This and other Sierra glaciers a tortoise
transformed taking
V-shaped valleys into U-shaped valleys with all the urgency of a tortoise
a morning stroll