In addition, the Lochiel Cemetery is on private property on top of the hill from here. The sign indicates that they don't want people visiting it, so please respect their wishes and don't go in. Also, please don't drive up there, walk.
You usually don't need need high clearance to get to the cache. FR61 is a well maintained road from Nogales or Sierra Vista that leads to Duquense Road, and there are other generally good access roads.