It may be advertised as the "only area appearance," but Lollapalooza's stop at the Charles Town Races hardly qualifies as a local show.
Charles Town is 73 miles from Baltimore, and even though the ads claim that the raceway is "only one hour from D.C. or Baltimore," the Maryland AAA suggests that a more realistic driving time is 80-90 minutes.
That, of course, is assuming the roads will be clear, but odds are they won't be. There's only one way to get to Charles Town Races, and that's by way of Route 340 (the raceway is just off that road outside Charles Town). From Baltimore, you take Route 70 to Frederick, then Route 340 West to Charles Town. From D.C., it's Route 270 to Frederick, then Route 340 West to Charles Town.
Most of the trip is on a dual highway across rolling hills, but once you hit the Harpers Ferry National Historic Park, the roadway shrinks from two lanes in each direction to one. Factor in its winding path and the uphill climb into Charles Town, and it's a sure bet that the traffic will be as slow as it will be heavy, taxing both patience and air conditioning.
The wisest course of action would be to leave early. Even though the gates open at 10 a.m., three hours before the music starts, you may need that time to get through the traffic and to the parking lot.