Montyaz,
You are correct, there are more than a few hunters in WY that cant read a map. Even ran into a rancher last year that didnt know what antelope unit his place was in.
But, there are some that can read maps, count me in that group.
I can tell you what you need to know about the portion of the muddy mountain HMA that ABSOLUTELY IS IN AREA 7.
Its mostly antelope country, but that doesnt mean there isnt elk there from time to time. I've seen some really nice bulls out in the grass/sagebrush in unit 7. Dont be afraid to look there, but I wouldnt suggest banking on even finding an elk there.
Its worth having the permission slip and definately worth a look. I've seen elk enough right out in the wide-open in that country to not count out any portion of the unit. If there happens to be snow when you hunt or you get a storm...I'd at least give it a look. Sometimes elk are pressured out in the open as well.
Unit 7 can be good, but there are lots of private land issues in there. The easily accessible public gets hit pretty hard. From what I've seen while hunting with friends in there, I'd rifle hunt it early...as in have the bull you want dead on opening morning.
Good luck.