Most visitors treat Black Mountain as a day trip from Asheville — coffee on Main Street, a gallery, back to the city. That's the short version. The better version goes up. Within 20 minutes of downtown, you can reach overlooks at 5,000, 6,000, or nearly 7,000 feet — including the summit of Mount Mitchell, the highest point east of the Mississippi. Here's what's worth the drive and what to expect when you get there.