Free: Contests & Raffles.
It's true that elk will use wallows, actively, as late as early November but for the most part, they are an August into the early part of September phenomenon. If your wallow is active in the first week of your SEPT hunt, money! I'd check your game cam as close as possible to your hunt and see if anybody is actively using it otherwise, you'll wast some valuable elk hunting time if you sit it. Just my thoughts.