https://www.pcgamer.com/where-to-find-easy-battle-pass-points-in-fortnites-greasy-grove-treasure-map-challenge/

Yeah, baby. It's Week 5 of Fortnite Season 4, which means googling the "follow the treasure map in Greasy Grove" Battle Pass challenge the second you log in. 

This week's treasure map challenge is as simple as the rest. Just head to Greasy Grove and look for a treasure map featuring a crude drawing of the 'secret' evil lair built into the side of the mountain east of Snobby Shores. Or just let us tell you where to go: To follow the Greasy Grove treasure map, you'll need to head to the skeletal lair's nose. It looks like a set of stairs too if you're lost on the whole nose thing.