Near Rancho San Vicente Loop
Spring wildflowers and green hills along Vista del Oro Trail
Near Rancho San Vicente Loop
Calero Reservoir near the dam, as seen from Cottle Trail.
Near Rancho San Vicente Loop
Wildflowers and spring greenery is everywhere along Lisa Killough Trail in late March.
Near Rancho San Vicente Loop
Mt. Umunhum of the Santa Cruz Mountains is in the distance as Lisa Killough Trail emerges from a shaded section.
Near Rancho San Vicente Loop
Calero Reservoir from Cottle Trail.

Looking for more photos?

View All Photos
Driving Directions
Hike Route

Rancho San Vicente Loop

3.9 (7 Ratings)
This is a beautiful day-hike through grass and wooded hills with views of the Santa Cruz Mountains and Calero Reservoir.
8.2
mi
Distance
1,035
ft
Gain
moderate
Difficulty
BirdingLakeLakefrontRiver/CreekViewsWildflowers
Access Issues
The park is open from 8 a.m. to sunset. There is no fee when parking in the trailhead parking area.

Route Details

Flatter
Steeper
8.24mi
Distance
1,035ft
Elevation Gain
1,035ft
Elevation Loss
60%
Max Grade
893ft
High Point
419ft
Low Point
Path Type
Loop
Description
Rancho San Vicente Loop starts and ends at the parking area of Calero County Park's Rancho San Vicente entrance on McKean Road in the northwest corner of the park. This loop begins on Lisa Killough Trail that has its trailhead at this parking area.From the trailhead, Rancho San Vicente Loop heads into the grass hills, climbing gently. To the right in the distant wooded hills, are a few widely scattered homes. To the left, rise the grass hills of Calero County Park. A few trail junctions are passed--North Ridge Trail at the 0.2 and 0.4-mile marks, and then the start of Cottle Trail at the 0.6-mile mark. About 1.1 miles from the trailhead, Vista del Oro Trail is finally passed on the left.Shortly after passing Vista del Oro Trail, Rancho San Vicente Loop veers left (southeast) to head into the interior of the park, leaving all signs of civilization behind. A high, grassy ridge rises to the left of the trail. To the right of the trail is a wooded creek valley. Across the creek valley, one can see the wooded hills of the park and the Santa Cruz Mountains in the distance. The trail now goes through sunlit wooded sections as it levels off briefly before resuming its gradual climb.At the 2.9-mile mark, there is a short 0.1-mile spur to Lisa's Lookout, above the trail's highpoint. This lookout has picnic tables and a great view of the hills and Santa Cruz Mountains. Lisa Killough, the Lisa Killough Trail and lookout's namesake, had a dedicated 25-year career with Santa Clara County Parks, enthusiastically promoting Santa Clara County Parks' growth and preservation.Just after passing Lisa's Lookout, Rancho San Vicente Loop reaches its high point and begins to gradually descend. Continuing to wind through grass hills and thin woods, the trail passes the end of Vista del Oro Trail on the left at the 3.5-mile mark. From here, the trail heads east to one giant switchback where it does a U-turn to head west down into the Cherry Canyon Creek Valley and Cottle Trail.Rancho San Vicente Loop reaches Cottle Trail after 5.0 miles at Cottle Trail's 2.9-mile mark, deep in the interior of Calero County Park. Turn left here onto Cottle Trail, to continue hiking the Ranch San Vicente Loop.After passing the Cottle Trail junction, Rancho San Vicente Loop runs along Cherry Canyon Creek in its broad grassy creek valley. Calero Reservoir comes into view and after about 0.3 miles along the creek, the reservoir is reached. Cherry Canyon Creek empties into the reservoir here at the reservoir's marshy end of Cherry Cove. From here, the trail goes through wooded and grass sections as it follows the reservoir's western shoreline for the next 1.3 miles. To the right of the trail, the reservoir can be seen below, nestled among the grass and wooded hills of Calero County Park. The trail reaches the end of the reservoir on a hillside above the reservoir dam.Leaving the reservoir behind, Rancho San Vicente Loop meanders through the grass of a thinly wooded hillside for its next 1.3 miles. The trail is fairly flat here and shaded by oak trees. A trail junction with Lisa Killough Trail is then reached. Turn right here, onto Lisa Killough Trail, for the final 0.6 miles of the Rancho San Vicente Loop, through grass hills. Rancho San Vicente Loop ends at the parking area where it started.
History & Background
The northwest area of Calero County Park, that this hike circles through, was part of the 4,438-acre Rancho San Vicente, a Mexican land grant ranch established in the mid 1800's. Almost 1,000 acres of the original Rancho San Vicente were preserved as Rancho San Vicente Open Space Preserve that became part of the Santa Clara County Park system in 2009. Santa Clara County Parks has built trails, a parking area, picnic tables, and restrooms in this area, completing them in early 2018, and subsequently opening this gorgeous land to the public.

Route Conditions

Report Conditions
No Condition Reports
Report Conditions

Nearby Hike Routes

Quicksilver History Loop

Hike Route

Quicksilver History Loop

Family Friendly
moderate
6.8 mi
+1,358 ft
Almaden Quicksilver County Park Historic Trail

Hike Route

Almaden Quicksilver County Park Historic Trail

Dogs Allowed
moderate
6.62 mi
+1,420 ft
Tour of Rancho Canada del Oro

Hike Route

Tour of Rancho Canada del Oro

River/Creek
moderate
7.94 mi
+1,650 ft
Mount Umunhum Summit and Back

Hike Route

Mount Umunhum Summit and Back

Birding
moderate
7.86 mi
+1,200 ft
Bald Mountain Out and Back

Hike Route

Bald Mountain Out and Back

Views
easy
1.3 mi
+127 ft
Quicksilver - McAbee Loop CCW

Hike Route

Quicksilver - McAbee Loop CCW

Family Friendly
moderate
4.45 mi
+805 ft
Contributors
Joan Pendleton