Shenandoah National Park is a good choice, as is the Grayson Highlands/Mount Rogers area noted above. You most definitely have plenty of road crossings along Skyline Drive; however, in inclement weather, Skyline Drive will be closed. That said, some of the park facilities in the northern and central portion of SNP open March 21; while bad weather is a definite possibility that time of year, it’s not extremely likely. If you really want to beat the crowds, you could hike the southern portion of the AT in the park – the 44 or so miles between Rockfish Gap and Swift Run Gap. Parking is available at each end of the section. You’ll get plenty of views in this section in mid-March – many views you won’t get once everything starts to bloom. Of course, if you want to do more miles per day, Rockfish Gap to Big Meadows (which will be open and is a fine place to leave a vehicle) is about 61 miles. The terrain is about as easy as you will find on the AT in Virginia.
Ozone