REMNANT: FROM THE ASHES - Rock of Anguish Location
The "Rock of Anguish" amulet in Remnant: From the Ashes increases movement speed by 25% and reload speed by 50% for 3 seconds after taking damage. It can be found in the starting area of Corsus - the area where you first arrive there. Here's a video showing the path to where it spawned for me. Remember, Remnant's world rolls are unique to every player, so where it spawns for you (if it spawns for you) will be different. But the area in which it can spawn remains the same.