The new atlas shows symbols on maps where a master mission will be available:And while I recognize the symbol for bestiary, it would be nice to have a resource to look up the meaning of each symbol to be sure what mission is available there. The path of exile gamepedia on the atlas doesn't include this information.

1 Answer

Going from left to right:

Dark blue "gear": Delve (Niko). Map contains 3 Sulphite nodes.

Blue fleur-de-lis: This indicator was teased but is not used in-game. The symbol is identical to the symbol used for the player hideout, and was speculated to be related to Helena.

Red bow and skull: Bestiary (Einhar). Map contains several yellow beasts and at least one red beast.

Yellow wing and claw: Syndicate (Jun). Map contains up to three Immortal Syndicate encounters.

Two tone green/red "V" symbols: Incursion (Alva). Map contains up to three Incursion altars.

Bright blue circle with bronze gears: Atlas (Zana). Zana is present in the map and will offer a selection of missions.