Mouse picking on GeopMipTerrain

I’ve been experimenting with PandaSteer on terrain generated using GeoMipTerrain. While I have successfully used getElevation() to have actors follow the terrain, I haven’t figured out how to select a point on the terrain using the mouse. I hope to be able to select a position and have characters navigate to there. Searching the forums, I have found mouse picking suggestions, however I haven’t found out how to pull it of on the GeoMipTerrain.

Anyone have any advice? Thanks.