Topo: http://justanotheroutdoorpage.blogspot.com/2013/04/zebra-wall-arrow-lakes-castlegar.html 
A great striped wall right off the road.
Stay on route to avoid loose basalt coming off.

As you approach Castlegar from Nelson, follow signs pointing you towards Syringa Provincial Park & Robson. Turn onto Broadwater Rd. and follow this past the Pulp Mill & the Dam on Arrow Lake. After a few minutes you will reach Scotty's Marina on your left, pass this, drive a few hundred more meters down the road and you will spot a small waterfall on your right (Waterfall Wall) and a nice little pullout on your right. Park here and walk 2 minutes further down the road to where you will find the Zebra Wall directly off the road on your right.