The Hart museum will remain closed until further notice. The County approved a motion to begin negotiations to transfer ownership of William S. Hart Park and Museum to the City of Santa Clarita. Learn more.

How Old Is Your Oak?

A How-to by NHMLAC

A Museum Educator holding a tape measure around a tree's circumference

Want to discover how old an oak tree is without cutting it open to count the rings? So do we! Learn how to tell an oak's age with just a tape measure and some simple math in this how-to.