I have hiked on the gravel road up from Daughton Mt Rd. It climbs to the Skyline telephone relay tower and around to 2nd summit. The land is posted but I suspect only to hunters. You can contact Rocking B Farms in Laurel Springs if you plan to do either (telephone numbers are 828-372-7467 and/or 828-372-5770). There is a deer stand in the field between the two peaks
I've climbed to the summit of Peach Bottom Mountain twice. My wife owns some acreage at about 3,800 feet. I used to get access to the top via a large tract of land owned by a friend whose land abuts hers. However, he has since died and I haven't had the chance to ask his heirs if I could continue to climb across their property.
The top of the mountain is in pasture, and is now leased out to a guy farming beef. The views from the heights are great, and you can spot many important peaks within a three state region (NC, TN, VA).