You can do the hike from Sierra up to the top of Union (unless the Celebrity Ridge poma is running) and get to Buzzard's Alley and Golden Crest (I think that's the name). BUT, instead of hiking, it is much easier to use the goat track on the backside of Union (you drop below PHQ on the Copper Bowl side) and it pops you right up to Buzzard's Alley & Golden Crest. View attachment 121632
ACK-SHOO-A-LEEEE .... Golden Crest goes down into Copper Bowl (the signs from the traverse point to GC and BA, I think; BA goes down Union Peak side, and GC down next to Mountain Chief on the south side).