Larend has another contract for you to take on. Larend has his eye on a Fanghorn that his crew can’t seem to track down and capture. You will have to track down this machine to complete the mission. This is how you complete the Elusive Fanghorn contract in Horizon Forbidden West.
After you get the contract, head south of Larend’s location to the nearby waterfront. You will find that there are many tracks that you can check out. Check those tracks until you find ones that belong to Fanghorn. Use your Focus to track it by holding R3 and pressing R1 to mark road segments.
Follow the trails along the river’s edge until you find Fanghorn on a nearby cliff. Your next mission will be to kill Fanghorn. This is not as difficult as you think. Fanghorn has a fairly predictable path when you start running and you chase it for a while. Use a tripod or ice arrows to help slow down. You can also summon a mount if you need more speed to capture Fanghorn. Once it’s dead, return to Larend to claim your reward.
https://www.gamepur.com/guides/how-to-complete-the-elusive-fanghorn-contract-in-horizon-forbidden-west How to complete the Elusive Fanghorn contract in Horizon Forbidden West