https://www.rcrwireless.com/20230511/network-infrastructure/towers/verizon-inks-deal-vertical-bridge-expand-4g-5g-footprint
also combined with network bridging in remote areas
https://www.verizon.com/business/solutions/business-continuity/remote-networking-solutions/
probrobly copper based from fiber to verizon 4 and 5g repeaters. it appears you are on a tower but really they are using cellular bridges