VHF vs UHF in moutainous areas like WV/TN

I’ve read the other older posts on this topic, but most of the responses are from guys out west that ride the dunes (open areas). I’m looking for a radio to communicate farther than a handheld will in the mountains, but also waterproof (if possible). I believe the UHF is the way I’m leaning, but was also thinking dual band VHF/UHF. Any suggestions would be helpful. Also, if you have an idea to install a non waterproof radio that works, I would like to hear about that. Thanks, Joe in Ohio

VHF vs UHF in moutainous areas like WV/TN

I’ve read the other older posts on this topic, but most of the responses are from guys out west that ride the dunes (open areas). I’m looking for a radio to communicate farther than a handheld will in the mountains, but also waterproof (if possible). I believe the UHF is the way I’m leaning, but was also thinking dual band VHF/UHF. Any suggestions would be helpful. Also, if you have an idea to install a non waterproof radio that works, I would like to hear about that. Thanks, Joe in Ohio