Tagrock

Open Book Rock Formation

An open book is a rock formation that looks just like its name. This specialized term is one of hundreds collected and explained in the book Home Ground: A Guide to the American Landscape. Such a rock formation is also called a dihedral. This is...

Beta in Rock-Climbing

A rock climber in Omaha, Nebraska, wonders about the term beta, which her fellow climbers use to refer to  information about a particular route. It comes from the old practice of using Betamax video to record information about a climb. A good...