This trail forms the eastern side of the "main loop" in Rancho San Vicente/Calero Park. The trail connects the parking lot at the north end of the park to the Cottle Trail/Serpentine Loop Trail at the center of the park.<br><br>The trail is about 5 miles long and presents around 500 feet of climbs. The rate of ascent is very mild, without steep grades of any kind. It's safe to say that the climb is so gentle that it's even hard to notice it most of the time. There's a simple yet nice lookout (called Lisa's Lookout) with a few benches and a somewhat interesting view along the way for those who might need a break or just want to stop and enjoy the scenery.<br><br>Riders can head south (and connect back to the parking lot via Cottle Trail), making a counter-clockwise loop, or vice-versa. Be aware of the very sharp turn connecting the Lisa Killough and Cottle Trail (at the southern tip of Lisa Killough). Also, make sure not to enter the Serpentine Loop Trail, which is not bike legal at this time.
NORAD station on Mt Umunhum
Water trough
Oak trees
Lisa Killough Trail
Lisa's Lookout
Overcast spring day
1.4% Grade - Easy Climb
Lisa's Lookout
Trail
Nice View
Really nice view all along of Lisa's Trail