Roads not marked to well but we managed to find it. the trails were there.... the old bldg ruins were there... but that's about it. grass was head high but other than that it could be a beautiful place if someone would take the time to do a little maintenance on the grounds....
Went to the site last weekend. First, let me say the road to get to the site is NOT marked. The directions from this app attempted to send us to the farmer's field with the iron horse. Which was pretty cool. I had to pull out the gps to find scull shoals road. At the end of that is the site.
The location itself is pretty cool. Very overgrown and uncared for, but the ruins are neat. The trails leading from one building to another are non-existent, so after walking through the long grass (and dodging the spider webs) we located the old water mill. The only part that appeared cared for was the trail to the river where people had been fishing. It looks like a cool spot to wade and swim. The dog enjoyed it.
Even with all the issues, I would recommend the location as a neat side trip.
Scull Shoals was once the site of an old mill town, and you can access an arched bridge and remnants of two other brick structures. Take a camera. It's more of a heritage site than a hike, as the footbridges alongside the river are washed out.
BUT, make sure to hike to the Indian mounds. To get there, take FR 1231A, which is (I think) the first service road on your left as you leave the Scull Shoals site. The road will dead-end, and you can park. The trail to the Indian mounds will be through the clearing on the right. The largest mound is actually visible from the service road, but you can't really tell, since the mounds are covered with foliage.
Once you get back to Macedonia Road, if you make a left and travel a few miles, you will see the Iron Horse in a corn field on the right.
Despite the signage that the trail is closed, I gave it a whirl. In reality, a couple of planks were missing from 2 bridges & the trail was narrow due to erosion (less than 8ft total). It was not dangerous. It was evident lots of locals still frequent it bc of all the fishing debris.
The remnants were impressive (read up before visiting). Saw lots of snakes, large snapping turtle, gar in water & saw tail of beaver that had been making a lot of noise.
More details, pics & gpx files at hikingdiva.posterous.com