Start at Loehmann's Plaza, Rt 50 just inside the Beltway.
Miles   Action                  Route                   Int. Miles
 0. 0   South at Stop           Graham Rd               0.7
 0.7    Right at Light          Annandale Rd            1.1
 1.8    Straight at Light       Hummer Rd.              1.1
 2.9    Right at Light          236 West                1.5
 4.4    Left at Light           Wakefield Chapel Rd     1.9
 6.3    Right at Light          Braddock Rd             0.9
 7.2    Left at Light           Burke Lake Rd           3.7
10.9    Straight at Light       Burke Lake Rd           1.2
12.1    Straight at Light       Clifton Rd              1.6
13.7    Straight at Stop        Clifton Rd              1.9
15.6    Bear Left               Clifton Rd              1.3
16.9    Right at Stop           645 (Main St.)          0.3
17.2    Left                    Clifton Rd              0.7
17.9    Left                    Compton Rd (no sign)    1.9
19.8    Right at Stop           Compton Rd              1.9
21.7    Straight at Light       Compton Rd              0.1
21.8    Then Right              Compton Rd              2.8
24.6    Sharp Right             Bull Run Post Office Rd 1.1
25.7    Left at Stop            Lee hwy                 7.3
33.0    Right into Wendy's Parking Lot

Reset Odometer

 0.0    Right                   29 West (South)         2.1
 2.1    Right                   703 (Old Carolina Rd)   2.0
 4.1    Left at Stop            Washington St. (55W)    0.5
 9.7    Left                    674 Georgetown Rd*      0.5
10.2    Straight                628                     6.0
16.2    Left                    605 Arlie Rd            3.4
19.6    Right at Stop           15/29 South             0.3
19.9    Left at Light           605 (Dumfries Rd)       3.9
23.8    Left                    602 North               3.7
27.5    Right at Stop           215                     6.5
34.0    Left at Light           28 North                2.1
36.1    Left at Light           Godwin Dr               2.0
38.1    Right at Light          234 South               0.7
38.8    Left at Light           Digges Rd               0.1
Then Left into Kenny Rogers Roasters' Lot

To return to Falls Church, you can go either direction on Sudley Road and
return to I-66 East.  If you continue south, go straight on Sudley Road to
28 North, if northbound, 234 connects with I-66

*At 9.1 miles you can turn left onto 628 and enjoy a short stretch of
unpaved road.  (you could turn Right at that same intersection and enjoy
several miles of Bust Head Road, one of my favorite unpaved roads in the
area.)  Leon.