ATLAS Progress in Boosted Top Quark Physics: A First Look at 13 TeV pp Collisions

I will describe how we detect boosted top quarks at the Large Hadron Collider and separate them from the very large background arising from light quark and gluon jet production.  I will summarize the most recent ATLAS results obtained from the 2015 run of the Large Hadron Collider, where we have had our first look at 13 TeV proton-proton collisions.