In Texas, we found a fossilized human foot in a creek bed in the 70's. The only problem was it was inside a cowboy boot that was made in the 1950's. It doesn't take millions of years to form a fossil.
You may find it of interest that even the sensationalist Carl Baugh, who once claimed the artifact you mentioned, has wiped clean his website AND his "Creation Evidence" museum of any and all mentions of the infamous "Limestone Cowboy Boot."
Why? Because it is such a bad fake, that even hardcore bible literalist young earth creationists weren't buying it. Hopefully you'll follow their lead.