Hello, gardening community. What is this viney monster? It's surfacing in several areas of my yard. Is it a keeper? Thanks in advance.

Looks like Virginia Creeper to me. If it is that I'd pull up all you see. It will overrun everything!

My first thought was also Virginia Creeper.
Virginia Creeper (Parthenocissus quinquefolia)
https://www.wnmu.edu/academic/...

I agree with Virginia creeper. I have it everywhere here and am trying to kill it off as fast as I can.

VC. A weed I love/hate. The birds spread them everywhere in my garden. Not exaggerating, literally everywhere. I pull hundreds, maybe a thousand or more seedlings every year all growing season long. Some get away from me and become vines and grow incredibly quickly, rooting along the ground as they go.
But I love it all the same and will always keep at least one somewhere and even let it seed.

It is beautiful in the fall, but I agree, it's a rampant grower.

It does have gorgeous color in fall, depending on where it's growing. I rarely see the beautiful color here in Florida and it's a rampant vine here too ... crawling across the ground, climbing up into the trees and along fences. It can take over if given even the slightest chance.