START     Walnut Creek BART   Loop from W.C. BART to Mt. Diablo summit and
                               return to BART
                        
       FROM             
TOTAL   LAST  DIRECTION 
                        Exit NW corner of parking lot
0      0      E         R onto Pringle from parking lot
0      0      S         R onto California Blvd
1.1    1.1    E         L Newell
1.2    0.1    S         R  Main St. (becomes Danville Blvd at Castle Hill Rd)
6.1    4.9    E         L Camille; Optional stop at Hap Magee Park;
                         water/restrooms
6.1    0      S         Continue south on Danville Blvd
7.1    1      E         L El Cerro, becomes Diablo Rd
10.6   3.5    N         L Mt Diablo Scenic Blvd becomes South Gate Rd.
                         (4.5% grade avg*) ROLLING REGROUP
17.5   6.9              Junction Ranger Station (water/rest room) REST STOP
17.5   0      E         R Summit Rd. to summit (6.9% avg. grade*; summit
                         elevation 3,800 ft.)
22     4.5    W         Summit (turn around) REST STOP
26.5   4.5    N         R on North Gate Rd at
                         Junction RS (5.75% avg. grade Junction to Entrance
                         Station*)
33     6.5              South Gate Entrance Station REGROUP
34.3   1.3    N         R Oak Grove Rd
34.4   0.1    W         L Walnut Ave (traffic circle)
                        
                        Lunch detour
                        L Blackstone
                        R Warwick
                        L El Divisadero
                        R San Antonio
                        L Los Cerros
                        R San Carlos
35.2   0.8              R into Ygnacio Plaza Mall just before Ygnacio Valley Rd.
                         intersection Lunch
35.2   0                R Ygnacio Valley Rd.
                        
                        Return to main route
35.6   0.4    NW        L Bancroft Rd
36.5   0.9    SW        L Treat Blvd
37.6   1.1    S         L Oak Rd (Becomes Civic Dr; BART riders can exit here
                         to Pleasant Hill BART Station)
38     0.4              L into Walden Park (optional stop for water/rest room)
38     0      S         Continue south on Oak Rd.
38.2   0.2    W         R Parkside Dr.
38.6   0.4    S         L Riviera Ave.
39     0.4              FINISH: Walnut Creek BART
                        
* per Roads to Ride, Grant Petersen, 1984, Heyday Books, Berkeley, CA