Lyme Disease Rock–Lake Ranch Reservoir, 4 sights is a 9.9-mile out-and-back in Sanborn County Park near San Lorenzo Park, CA. The route passes Lyme Disease Rock before reaching Lake Ranch Reservoir at the turnaround, 5 miles in. It climbs 1,832 ft, with sections as steep as 16% grade. It scores 28/100 on the Ambleway Wildness scale: green fringe.
Elevation
0 mi1,824 – 3,101 ft · steepest grade: 16%10.2 mi
Getting there
Trailhead: Skyline Trail 37.23017, -122.09372
Nearest town San Lorenzo Park, CA
Directions
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Lyme Disease Rock–Lake Ranch Reservoir, 4 sights
9.9 mi · ▲ 1,832 ft · 4 hr 13 min
Elevation 1,825–3,102 ft
Out & Back · Sanborn County Park
Trailhead: Skyline Trail · 37.23017, -122.09372
Weather Sep 20: sunrise 6:55 AM · sunset 7:10 PM
Dogs allowed on leash · Toilets at the trailhead · Parking lot at the trailhead
- Start on Skyline Trail, heading SE.
- 0.4 miPass Lyme Disease Rock.
- 2.4 miSharp left, heading NE.
- 0.4 miContinue straight onto John Nicholas Trail, heading NE.
- 1.8 miPass Lake Ranch Reservoir.
- 300 ftReach Lyme Disease Rock, then turn around and head back the way you came.
- 1.7 miTurn left, heading W.
- 0.5 miSharp right onto Skyline Trail, heading W.
- 2.7 miArrive back at the trailhead.
Each distance is the walk from the previous step. Tap a step for a map of its junction.
Trail surface
33% dirt67% unspecified
Weather
Sunrise 6:55 AMSunset 7:10 PM
Sunset
The best sunset spot on this hike is right at the trailhead, so there is no walk out. Be there by 6:50 PM to have the sun's last 20 minutes of sky before it sets at 7:10 PM. Your car is right there — dark at 7:36 PM.
Good to know
- Dogs allowed on leash
- Toilets at the trailhead
- Parking lot at the trailhead
Other ways to reach this destination
More from Skyline Trail Trailhead
- Lyme Disease Rock via Skyline Trail 4.9 mi · ▲ 722 ft
- Ridge Trail & Saratoga Gap Trail 2.1 mi · ▲ 446 ft
- Goat Rock–Parking Lot Rock, 3 summits 4.9 mi · ▲ 1,270 ft
- Parking Lot Rock–Ridge Trail, 3 sights 2.5 mi · ▲ 588 ft
- Castle Rock Falls–Saratoga Gap Viewpoint, 5 cliffs 2.9 mi · ▲ 738 ft
- Shady Rock–Platypus, 6 rocks 3.4 mi · ▲ 869 ft
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