A list of all the high school football records. This site will not be of any interest to a sane, rational person. I, on the other hand, find it fascinating.
A few things to check out:
Search on the name of Ken Hall, who played for Sugarland HS (TX) in the 50s and still holds the career rushing record (over 11,000 yards) as well as quite a few other records, including yards/carry in a single game (520 yards on 11 carries). Check out Hall's wiki page if you've never heard of him, possibly the greatest HS football player ever.
A few NFL greats that still show up on the list: Billy Sims, Emmitt Smith, Herschel Walker, Max McGee and, believe it or not, Red Grange.
Quite a few current players like Peyton Manning, Toby Gerhart, A.J. Green, Knowshon Moreno.
A few baseball players: J.R. House, Jermaine Dye, Don Gullett.
Perhaps the most shocking stat I found: JaMarcus Russell had 7362 career rushing yards.