I always clean quickly after a ride here. We did a soil sample at our house and it’s very high in Sulfur. Like off the charts high. Manganese is also abnormally high, but not nearly as high as Sulfur.
There are post markers for most of it. There are a few intersections that aren’t obvious, so a map wouldn’t hurt. The trails have a nice flow to them, so even if you make a “wrong” turn, you’re not going to leave civilization.