Ontario has a rifle range with 3 covered bench positions, as well as multiple provisions for shooting prone in front of and next to the bench rests (obviously the benches are not used when the forward prone positions are in use). Target berms are at 50, 100, and 200 yards (I've heard it said that the 200 is actually more like 220 yards, but I don't really know for sure which it is).
There's also a wide, covered pistol range called the "Eagle Range" that's enclosed by berms on 3 sides. Max distance is 45 yards. Its also fine to use rifles and shotguns on that range.
There's also 2 trap fields, but no skeet unfortunately (skeet is my preferred shotgun game), and no sporting clays either.
There's a small archery range over in the woods as well.
Finally, in the back there's a separate training range, and 2 more additional pistol bays that are usually closed. The training range is used for classes and training (shocking, I know). It's also used for competitions and events though. Most of the time for those events the rifle range is closed as well. This allows the training range, back end of the rifle range, and the 2 additional rear pistol bays to all be setup as separate, independent competition stages. It's certainly not Rochester Brooks, but it's a very pleasant place to shoot a wide variety of disciplines, and is very affordable.
I did think long and hard about Williamson before joining at Ontario because I really do enjoy skeet... but ultimately decided I didn't want to have to drive that far every time I wanted to go plinking. I have no regrets at all about choosing Ontario, but may expand a bit when the kids are grown and I have more free time for such things.