Rangerlab is right Montana's unit 410 does have some elk on private land. The unlimited permit is for archery hunting only. You must apply for your license by March-15th. Then you must apply for your special permit by june 2nd. If you draw your elk license? There are no over the counter elk tags in the state of Montana.
If you are looking for an over the counter tag after your draw results come out? Look at Colorado & Idaho.