# AprilTag Tracking outdoors with GPS

Source: https://forum.modalai.com/topic/1982/apriltag-tracking-outdoors-with-gps
Category: General Questions (https://forum.modalai.com/category/2/general-questions)
Posted: 2023-03-22 21:02:27 UTC by Jose Alfredo Rosas Cordova
Replies: 0 · Views: 532

## Jose Alfredo Rosas Cordova · 2023-03-22 21:02:27 UTC

Hello everyone!

I am planning on carrying out outdoor missions with GPS using the VOXL 2 flight deck. I`ve been using the tag detection algorithm to do precession landings while using VIO navigation and offboard mode through MAVSDK. I am not interested in having VIO enabled for outdoor flight, but I'd like to keep the tag tracking functionality available. I ran into this article: [this documentation page](https://docs.modalai.com/flying-without-gps/) that talks about using both GPS and vision based navigation. Would following this procedure allow to use GPS for a waypoint mission and then use tag detection and offboard mode to do precission landing?

Thanks in advanced for the answer :-)