Last updated 2:35AM ET
May 25, 2013
Land Lines - Meteor Crater Meteor Crater , AZ (2011-10-13) Meteor Crater--Today on Land Lines, we pay a visit to a notable northern Arizona landmark--Meteor Crater. The origin of this very large hole in the ground sparked a controversy between the crater's owner and the geologic establishment of the day. Michael Collier and Rose Houk bring us the story.
Land Lines - Grand Falls Coconino, AZ (2011-09-15) Today on KNAU, we begin a new series called Land Lines. Writer Rose Houk and geologist Michael Collier will take us places on the Colorado Plateau, places you may have driven by and wondered how they formed. Grand Falls, on the Little Colorado River, only flows at certain times of year. When it does, it's one of those special landscapes that inspires a sense of wonder.