Photo of small cream-colored stone, very pitted with one hole going clean through. Stone is photographed on a bed of garden succulents.

For #RockinTuesday, a cool cobble I found by Kootenay Lake in BC. Any #BCgeology people here? I'd love to know what it was doing there. Seems like some kind of tuff or rhyolite, very different from any bedrock I saw nearby, though there were others like it on the beach.
#geology #canada