A wallow is a basically a mud hole, usually in or around a mountain spring, that bulls "wallow" or role around in.
I've located a lot of wallows while hunting and scounting, and I always seem to find bulls in those areas, but I've yet to ever actually SEE a bull in the act of wallowing. I think it would be a cool thing to see.
Here in Arizona, they start about August, but I have seen them earlier. If you can find one in summer, try to keep it a secret. I have seen them stop using busy one's right when the hunters start snooping around.
I learned this the hard way last year. If you're hunting in an area with lots of bear activity, it's a great idea to stash your food and water up in a tree. I like to wrap everything in a tarp and tie it between two trees. Don't just tie it up in one tree but tie it in between two trees at least 15 feet in the air. I thought I had my backpacking camp's food supply stashed pretty well last year. I returned to camp during the first weekend of archery to find all my food destroyed. Make sure...