@hgardner: I was very local for a long time, not quite so much now but not too far. Just as well, I'm probably a bit too old to learn dirt jumping! I went to Mangostfield lower and upper schools and remember walking my grandparents dog on the fields that are now Emersons Green. If I remember correctly those jumps were dug out by the workmen building the nearby houses.
Close. Very intriguing and interesting findings....