Junior Gold is a qualifying tournament that requires you to bowl a local tournament to advance. The website with all the info is
http://www.bowl.com/tournaments/youth/jrgold/main.aspxbut the short answer is each tournament spot is $150. Bowlers to join must pay a $30 yearly membership and then have a 175 average for boys and a 165 for girls.
The Youth Open is $100 and includes a team, doubles, and singles portion of the event. That website is at
http://www.bowl.com/tournaments/youth/usbcYouthOpen/main.aspxAll youth events are open to bowlers who have not turned 22 by August 1 and are members of USBC and in the case of Gold they also need to be a member of Junior Gold.