If you see the enemies you need to jump across a gap to reach, back up, and head further west and south. You will find the corpse of the second cartographer by the cliff with their map resting ...
If you go directly to Usher's Hand, though, you'll be met with a tall cliff you need to climb to reach the cartographer's actual location. Inside the quest area, the exact location of Geirmund is ...
Take the bridge to reach the ... Go left along the cliff to find Fleccia’s lifeless body along with Fleccia’s Map glowing orange next to her Return the Emerald Stair cartographer’s notes ...