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 Aug 3: Clear, high 86°F / low 70° · precip 0% · wind 4 mph · sunrise 6:15 AM · sunset 8:15 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
ClearTemperature 86°F70°
Precip0%Wind4 mphUV8Humidity33%
Hourly temperature
90°70°
Sunrise 6:15 AM12 AM3 AM9 AM12 PM3 PM6 PMSunset 8:15 PM
Tue
84°65°
Wed
81°49°
Thu
92°49°
Fri
98°56°
Sat
96°58°
Sun
91°50°
Sunset
The best sunset spot on this hike is right at the trailhead, so there is no walk out. Be there by 7:55 PM to have the sun's last 20 minutes of sky before it sets at 8:15 PM. Your car is right there — dark at 8:44 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
- Castle Rock–Balancing Rock, 4 cliffs 1.5 mi · ▲ 212 ft
- Hash Boulder–Parking Lot Rock, 4 rocks 1.8 mi · ▲ 361 ft
- Ridge Trail & Saratoga Gap Trail 2.1 mi · ▲ 446 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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