Installation of AVO's new seismic and GNSS network at Mt. Edgecumbe volcano, August 20-29 2023. Station EDCR on Crater Ridge, view to SE. The temporary GPS antenna mast in the back right was partially knocked over in the winter of 22-23, so we replaced it with a much more durable welded steel monument made of four 12 ft rods driven into the ground.