Castle Rock PS Miller Park半程馬拉松是一條位於城堡石，科羅拉多州，美國的步道，他的長度為20.8km (大約30,000步) ，爬升高度為404m，難度評級困難。用Pacer App發現更多優質路線吧！
Single track dirt trail with great views. There are a lot of up and down sections on the trail with a rocky surface and tree roots that require attention. This is a half marathon length course, great for training .