Any living near the Milford area should definitely check into a spot off of Roundbottom Rd. Take Milford Pkwy toward UDF and hang a left, follow to quaker steak and take a right. Right at the tracks and you'll be there. Go about 5 miles or so until after the guardrail on the right ends. Look for a stop sign at the top of the tracks on the left. Proceed to enjoy
My experience has been in daytime hours when a few guys leveling the grounds are there. Not sure if it's closed off at night. It's a gravel pit wonderland.