This coal mine is called Kaymoor. It‘s in south-central West Virginia, near the town of Fayetteville. Getting there was a challenge: after miles of winding roads, you have to hike down a steep trail to get to the site. But it’s all worth it - in part because of the spectacular views over the New River Gorge, and in part because the coal mine and company town have been well-preserved as historical relics.
Go to West Virginia, it’s awesome.