Military-owned lands, being off-limits for public and economic use, can preserve biodiversity. Curtis Bjork has recently inventoried lichen species on the DND properties Albert Head, Mary Hill and Rocky Point, finding many species new to British Columbia or North America, and some new to science. The roughly one square kilometer area of Albert Head may have the highest per unit area lichen species richness in the world. Victoria Natural History Society. Swan Lake Christmas Hill Nature House. Everyone welcome.