# Existing Elevation Data

**URL:** <https://discuss.px4.io/t/existing-elevation-data/36612>\
**Category:** QGroundControl\
**Created:** [February 2, 2024, 5:18pm UTC](https://discuss.px4.io/t/existing-elevation-data/36612 "2024-02-02T17:18:55Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![AESurvey](https://discuss.px4.io/letter_avatar_proxy/v4/letter/a/a183cd/32.png) [@AESurvey](https://discuss.px4.io/u/AESurvey)\
**Post date:** [February 2, 2024, 5:18pm UTC](https://discuss.px4.io/t/existing-elevation-data/36612/1 "2024-02-02T17:18:55Z")

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Looking for help with QGround Control settings. When creating a new mission, the launch altitude is set to zero and effects the elevations for the rest of the way points and I cant get the mission altitude to follow the ground elevation profile. In the Mission height display the existing ground elevation profile stays at 0m and I am required to create a mission that maintains a fixed altitude above ground elevation. If anyone else has done the training for the Deltaquad pro, I am referring to Exam II d Mountain Mission.