Note: it is possible to run on one specific route through Camp Pendleton (or bike as most people do - south of Las Pulgas and north of Oceanside.) Just make sure you carry your drivers license, or your run ends at the entrance (North of Las Pulgas you don't need it.) It was very, very difficult for me to find this out - I ended up just driving to the guard box one day and asking them, since no one answers their public information line.
Glenmore 9.27mi (9.2 miles/ 14.9 km)
42 minutes ago