The Sister Witness Tree is the largest known California sycamore in the United States. It’s referred to as the “Sister Witness Tree” because of its proximity to the “Witness Tree” located across Hollister Avenue. The Sister Witness Tree measures 52.2’ in circumference, has a 95.5’ canopy and a height of 94’. Goleta Valley Beautiful (GVB) nominated the Sister Witness Tree for the designation of largest California sycamore after rescuing the tree from overgrowth. GVB is a non-profit organization that works in Goleta to insure the beauty
of the Goleta Valley.