Offered by Maccaferri is this short course on Mechanically Stabilized Earth (MSE) Retaining Structures & Rockfall Mitigation Using Drapery & Fences. November 7 (Ventura), 9 (San Diego), 14 (Reno), 15 (Sacramento), 16 (Bay Area) and December 5 (Boise), 6 (Seattle), 7 (Portland).