Yesterday I ran my final 20-miler of training for the Steamtown Marathon . I knew that if I could make it through that run without injury, I'd be good to go for the race. And I'm happy to report that I did! But the run wasn't without some folly.  Because my youngest niece was having a birthday party on the same day I was scheduled to do this training run, I'd planned ahead for Tim and I to spend the night at my dad's house in Longwood (which is close to where my niece lives). I knew my dad lived very close to the Seminole Wekiva Trail , so I planned the 20-miler on this route. Or so I thought. We knew my dad lived 2.5 miles from the trail, so we would just need 15 miles on the trail, or 7.5 out and back. I used someone's Map My Run route to get an idea of how many miles we'd be able to get at the entrance point from my dad's house. I even "enhanced" the map with my own notations, for Tim's benefit. The map I studied and enhance...