Best live albums from 1970's college days

Okay..... for you all old farts like me who enjoyed college life in the mid 1970's ..... what are your five favorite multi-LP live album purchases from those good old days ? Mine, in no particular order are : CSNY "Four Way Street," Yes "Yessongs," Grateful Dead "Europe '72," Peter Frampton "Frampton Comes Alive," and the Allman Brothers Band "Live at Filmore East." How about it guys and gals ..... shake up your memories and make a list !