This was my first trail 1/2 marathon. I'd run a 8K trail last year. I ran this for two reasons. First I wanted to do another 1/2 after doing my fist two this summer and I wanted to do a tail 1/2 since the first one was a road and the second a combo (urban tail). I had no idea what to expect having never been to this park. As I have come to know this Silver Circle event was well run. The 1/2 was two loops of the 10K, sort of. It had rained so the trail was moist but other than more dirt on my shoes than normal it wasn't too bad. There were plenty of hills and the biggest was right at the end. I gave this race almost all I had (I like to run rather than race) knowing I could go faster than I'd been running, plus by now I was in better condition. I really enjoyed this run. The course through the park was nice as were the runners I met. The only thing that could've been better (I found this later runs also) is that by the time I finished the 1/2 those who were in the 10K and those speedsters had ravaged the goodies leaving slim pick'ns. This was part of the Trail Assail Series of trail runs. I, after doing this, am partially hooked on these and plan on doing several more next year.