Technically the correct term is pictograph for rock paintings. Petroglyph seems to mean rock carvings, though around here and around the web I hear/ see petroglyph for both most of the time. In googling the words pictograph and Kootenay I did find additional information, including this site, which shows this sketch (click on it to see the whole thing):
With a shock of recognition I realized it was the pictographs we found on Sunday, though we couldn't find a *guide* to tell us what the letters on the sketch represent. But apparently just fifty feet south is another (smaller) set, so apparently we have to go back and find them. The other pictographs mentioned on the above linked page (site 76) are the ones we found last month. I've gone back and added a *pictograph* label to keep these types of posts linked. (Wonder what book I'm writing or could write might have these in it?)
We've suddenly become much more interested in the history of our area. Go figure.