Kid in our town played D-I high school hockey two years ago and was probably the best defensemen in high school hockey locally. He skated where one of the USHL scouts works on occasion and went to their combines. Kid finished high school and went out to the midwest over the summer and attended a hockey camp put on by a couple USHL coaches. Both coaches wanted the kid as an 18 year old and said to his dad, "where has this kid been?" Funny he was skating right under a scout's nose for 2-3 years and the teams never heard of the kid. But you can fall into it if you're good and have some size.
Here you go. Safe travels http://www.ushl.com/page/show/1209138-team-tryouts