This video shows the location of every single Legendary Pokemon and how to get them in Pokemon Let's Go Pikachu & Eevee for Nintendo Switch.
►Activate the description for the timestamps of the legendaries!!

00:00 Articunos
05:49 Moltres
09:08 Zapdos
13:40 Mewtwo
20:14 Mew
22:19 Meltan + Melmetal