The property is about an acre. The back yard is about two thirds of that. It is all lawn, with a few trees scattered around, but the bulk is open grass. The rear property line is about ten feet inside a forest that goes several miles. The wood line is overgrown vines and small brush that I have not identified.
Soil: I installed one 4x8 bed over a bare spot. I tilled about a foot deep with a shovel before adding my actual bedding fill on top of it. The soil is very sandy. It is white about a half inch, black about six inches, then turns reddish another six. I can shape it into a ball, but it is still crumbly and dries fast. In super heavy rain, the whole yard pools a quarter inch or so, then drains in less than an hour. I have not determined anything else about water movement.