Ok i did it. The entrance is at the Mill. They go out and UP the mountain, around the top, and down the original log ride, then behind it, through the loop, and they exit down the stairs.
I had to move the log ride facade to the other side to manipulate which way the water flows. ( Thanks for that tip! ) In doing so i created a wheelchair access entrance too, that bypasses the steps at the front of the mill. I also added some more snow on top to unify the mountain and track piece. I might actually keep this design....
http://i.imgur.com/m9jfhGS.jpg
I like the prehistoric theme though now too. Nice work there. Integrating new and old features is my favorite part of town designing.