495 to exit 47A (Route 7)  to 606, Baron Cameron Avenue. Turn Left on 606 & stay on 606 for about 4 miles, (will pass thru Reston & Herndon). At last top light in Herndon, turn R on Alabama Dr., (shopping center with "Food Barn" is also on Right). Stay on Alabama for about ½ mile; field on Right OR: 495 to Rte 7W to Rte. 606, follow to heart of Herndon. Beyond Herndon ES to Right on Alabama OR: Dulles Access to Centreville Herndon exit, go Right, about 3rd light up make a Left on Alabama (across from 7-11)