Endurance runners, if you are looking for a challenge, the Plain Endurance Runs could be just the race you are looking for. With only 4 finishers in the first 8 years of this event, and now boasting a 35% finish rate, this race is “Just Plain Tough!” This race is just like the name sounds – plain. No shirts, no aid stations, no marked trails, just plain running! And, it does take place on trails…