We sell the patch you are looking for here at the Mill Creek Visitors Center. It reads “I Climbed Mt. San Gorgonio” across the top of the patch, and across the bottom of the patch it reads “Elevation 11,502”. In the center of the patch it has a pic of the mountain with trees and the words “Old Greyback” on it. The cost is $4.95 plus tax. We are currently open Friday, Saturday & Sundays 9am to 4:30pm.