- Welcome! Acalanes Union High School District 1212 Pleasant Hill Road, Lafayette, CA 94549 Phone: (925) 935-2800 Fax: (925) 932-2336 Acalanes Campolindo Del Oro Las Lomas Miramonte Summer School Whats Happening This Week Grad Night Celebrations Preview Night Acalanes, Campolindo, Las Lomas and Miramonte Grad Night celebrations will begin immediately following graduation ceremonies on June 14 and ...www.acalanes.k12.ca.us