In Horizon Forbidden West, the Stand of the Sentinels Survey Drone is located in the heart of the forest southwest of the Stand of the Sentinels Tallneck, and northwest of the Stand of the Sentinels Black Box. The Sentinels Survey Drone Stand contains one of the ten Survey Drone Modules that you need to retrieve and reconnect at The Base to complete the Survey Drone Modules collectibles quest.
Start by climbing up the fallen tree at the location marked on the map above. Jump from the end onto the nearby platform, then use your grappling hook to reach the platform to the northwest. From this platform, use your Shieldwing to slide to the next platform, to the southwest. Climb down the ladder, then climb onto the upper platform and cross from platform to platform using the two slack ropes. Climb onto the horizontal log, then use your Shieldwing again to get to the platform to the southeast.
Related: How to capture the Greypeak Survey Drone in Horizon Forbidden West
Climb down the ladder, then climb onto the upper platform and wait for the Survey Drone to stop nearby before jumping at full speed towards it. This is a difficult jump that you have to time at the right time, otherwise you will fall short. Once you’ve gotten the drone to the ground, take it out to get the data you need.