Premise of the thread is faulty. You don't call something by a nickname or informal name unless it is something that commonly comes up in converstation.
Since most CSU students and "fans" only bother to even consider going to a game, football or basketball the one time a year they are playing CU there is no need for easy names for the venues since their is very little discussion of the venues in casual conversation.
Since most CSU students and "fans" only bother to even consider going to a game, football or basketball the one time a year they are playing CU there is no need for easy names for the venues since their is very little discussion of the venues in casual conversation.