Next weekend (July 30-31) is the Fifth Annual Burning River 100 Mile, the USA Track and Field 100 Mile Trail National Championship which I direct. The race has grown tremendously in 5 years. As of this writing (July 21) we have 287 entrants and are looking to hit 300 by the time the race starts. We also have somewhere between 350-400 volunteers helping out runners. For more info, go to BurningRiver100.org .
Also check out this piece from Channel 3 from a couple weeks ago.