(edit: I completely stupidly mixed up who did the poster under discussion. Apologies all around, fixed the text below)
I mentioned the Wetland Archaeology Research Project (WARP) and their revamped website once before in reference to Nancy Greene’s pioneering fishtrap work at Comox. I’m glad to see they have another interesting conference-style poster available for download, this one by Robert Losey (now at the University of Alberta) Scott Byram on the topic of Oregon fish weirs in unusual settings (PDF).
If a cow patch strikes you as an unusual setting, of course.