Here is a non PDF file of the park and park routes and trails?
Remember her body was found about 100 yards into the park from the residential road intersection of Grant Rd and Broad Branch Road. Her remains were closer to the residential area than the actual trail inside the park on a slope. From seeing the pictures of this slope from the internet and TV, it was not a very steep slope (it looks like it could be climbed easily without having to lean over and use your hands to climb it) and the area that was lighted up after dark could be easily seen by reporters and was picked up by the TV cameras last night. This tells me her remains or at least some of them were very close to road outside the park and not far into the park area.
The location seems to be strange as the body could have been brought back to the park and dumped if she was killed due to Condit or the attacker that is now in jail could have picked this spot as he would have an easy escape to get out of the park. Either way the spot where the remains were found could be accessed from inside the park and also from outside the park.
Thanks for posting the map and marking it. Very helpful.