Yes. It is a mine afterall, which would require the ability to move heavy machinery/equipment to be moved in and out, which means there is a fairly substantial road. Or there was, it's state of repair is not so great given the length of time the mine has been out of service. Which means uneveness, ruts, hole, maybe a washout, some debris (it is a dirt road).
You are in the plateau/foothills now, so the ground is going to be a lost more uneven/heavier foliage, so you can attempt to move overland, but the vehicles will move very slowly on approach as you find passable terrain. It's not severe enough terrain to have a major impact on foot traffic.