If you have a landfill site (i.e., dump) which has recently gone "out of business" and is owned/leased by a government agency, the EPA likes the idea of using these for model flying fields. The nice thing about them is that they are often in out-of-the-way places, and governments like to have someone else be on site to help with keeping it clean, etc., and will lease them very cheaply to an insured club. Regulated landfills are much nicer than you might think. Our club is looking at one right now, and it is actually a "cleaner" site than the current field--and with almost unlimited visibility in three directions! Moreover, farmers are not allowed to plant crops on it for a LONG time, so we are looking at some taller grass in the non-airstrip areas of the site. The AMA provides a useful "package" of information to help you file with local governments for approval.