Yes, Big Tree is on the orange dotted line. That whole trail’s only purpose is to take you by Big Tree, so if you follow the trail, you’ll hit Big Tree. You can’t miss the tree itself. It’s in low lying area surrounded by rocks and the tree is huge.

The orange trail (Big Tree trail) starts on 209 and goes north ending on 204. It’s not an official trail, so I don’t think it’s marked with a sign, but you can’t miss it.

If you want to get to it from 209, it’s right at the junction of 209, the Sipsey river and Bee Branch. (All three meet at a campsite on the east side of the Sipsey river.) There’s a real clear northern trail that follows the Bee Branch up. That’s the Big Tree trail. You can’t mistake it for 204 because 204 is marked and further east out of sight of the Bee Branch.

However, I took 209 to 204, followed 204 northeast to the end of the Big Tree trail. Then, I came back down on that trail. You can’t miss the trail this way either. It’s not marked, but 204 leading to it is at a bit of an elevation and on the side of a hill. So, there’s no opportunity to miss it. I kept thinking I had gone too far, but I pushed on, and when I made it to the fork, it was abundantly clear.

On the abandoned house, I didn’t make it to it, but I’m fairly sure I know the location. There are square areas clearly marked by signs that are holdover private property. The trails keep going through the property, and there are plenty of signs that people use them. However, they aren’t named on the private property and the numbered trails do some fancy stuff to map around them. To get to the cabin, you just take 201 north of the 209 junction (on the west side of the Sipsey river.) It will be about a mile north on the east side overlooking the river.

Hope this helps and I’d love to hear how your trip goes.