Replying to Steve Lapper, and knowing Boston Golf Club well, Boston's holes are not strictly isolated from one and other. There are certain holes, 4 comes to mind, and there are several others, that are set off in their own corridor. Boston, however, also has other corridors where holes are in close proximity to other holes. 2 and 3 run paralel to each other and one sees parts of the other hole while playing along. The same concept holds true where 12 and 16's fairways abut, and there is also a delightful confluence of golf structure that melds together from the vista of the 5th green as one looks right at the amazing par3 6th, and then left at the 7th fairway and its bunkering.
If you are looking for another course that has almost all of its holes in isolated corridors Hidden Creek in New Jersey comes to mind.