Mumu (yep, short for Mully Muny), was a spur of the moment. It suddenly felt right and needed to come to life. I'm not the source, just the shaman. Thanks for asking, btw (indrectly),
With so many great and wonderful golf courses out or in the works, I felt that what might be missing from this game was a modest and gentle golf course. The sort of unspectacular local course where nothing is fancy and where the locals gather during summer evenings for a relaxed round and where laughter can be heard from the next fairway. And where mulligans (hence the name) are being offered generously, without the concerned player needing to ask for them. Oh, some of my greatest moments in life happened on these low-key, remote golf courses that serious players can only sneer at with elitist contempt.
No pressure! No pressure on the golfers to bring their A-Game or to fail horribly. And no pressure on the golf course to dazzle, to stand out, to compete to be memorable. Just a plain, dumb little golf course. A guilty pleasure for golfers who want to play a fun little round, do not care for life-or-death golfing adventures or establishing new bests, and who enjoy picking up a few birdies on the cheap without having to work too hard for them.
Not sure about the environment. I'm tempted to introduce "Mulligan Broiled Poultry", a huge chicken farm with nasty rows of long death factories for fowlkind, that massively encroaches onto the estate. Either that or just some surfaces, pits and flats that are covered by lazily bubbling mud.
The radio relay tower in the image above once was the tallest in the mid west, a long time ago, for exactly 3 hours, until another one in Arkansas beat it. But: No pressure! The townsfolk of Mulligan Town love their tower, even now that it is defunct. It serves as landmark, of course, that will be visible from everywhere. Also, it's the highest point of the entire Boondocks County. The club house will be a small bungalow that doubles as a diner, triples as a bar and calls itself something like "Mulligan Radio Shack".