RD DEMAREE STREET. MERGE ONTO W NOBLE AVENUE. TURN LEFT ONTO S COUNTY CENTER DRIVE. TAKE THE er LEFT ONTO W MINERAL KING AVENUE. WALNUT CREEK 175 LENNON LANE, SUITE 203 WALNUT CREEK, CA 94598 (925) 906-9165 FROM I-SN, KEEP LEFT TO TAKE I-580W TOWARD TRACY/SAN FRANCISCO. MERGE ONTO I-680N VIA EXIT 44