I've got a open pit going in my backyard and as you asked about a ramp I'm trying to go down along the outer edge of pit. probably not going to be a perfect spiral due to large tree roots and not sure how deep I can go?
I plan on cleaning and using material to build roadbed under the shingles I currently use for roads.
And speaking of roads, that is a big thing to plan for and figure out for a park. Using shingles isn't the best road but it can be layed out very easily and quickly and also cheap. Nothing permanent but gives an idea of where to go and easy to change.
Also incorporated a couple loading docks for the highway haulers in the park. It's fun running the forklift and loading the flatbed trailer to go from dock to dock.
Future plans, weigh scale, screening plant , conveyors, hopper....
