(Total hills for Gazebo-and-back: 520')

Custis Trail map and photos and W&OD Trail map and info all from Bike Washington.

5 miles out to gazebo (W&OD Mile Marker 4)
6 miles out to point under Roosevelt St (W&OD Mile Mile marker 5)
7 miles out to just beyond Lee Highway crossing (W&OD Mile Marker 6)
8 miles out to Rt 7 bridge (W&OD Mile Marker 7)
10 miles out to Beltway (W&OD Mile Marker 9)

Water fountains (in-season):
3 miles out, half mile beyond the spiral
5 miles out, at the gazebo
8 miles out, at Rt. 7