Pulgas is a small,  well-managed preserve with a large off-leash dog area where dogs can run through the poison oak and brush to their hearts' content. If you don't want to hike with dogs about, go across the canyon to Edgewood Park, where dogs are not permitted. However, if you aren't bothered by the occasional dog barking and charging down the trail at you, or if you are a dog owner, give this preserve a shot.
     The 293 acres that now comprise Pulgas were formerly a tuberculosis sanitarium owned by the City of San Francisco. MROSD purchased the land in 1983. Buildings were demolished in 1985, and most of the non-native plants have been removed, but there are still some old walls and steps off Hassler Trail.
     In 2006 MROSD added a new parking lot and two trails to the existing small trail network. A third route, Dusky-footed Woodrat Trail, opened in 2007. Dick Bishop Trail (formerly named Sagebrush Trail) begins up on the ridge, and connects the end of Polly Geraci Trail with Blue Oak Trail, avoiding the off-leash dog area. A short (as far as I know, unnamed) path departs from the parking lot and connects to Cordilleras Trail, so hikers no longer have to walk along Edmonds Road to connect a loop.
      Begin from the edge of the parking lot, and follow the signed trail toward Cordilleras Trail. The path accompanies a string of power lines to the left, as it traverses a gently sloping hillside. Coast live oaks, California bays, and buckeyes provide shade. The property on the right is a substance abuse treatment center -- stay on the trail here and keep it quiet. After some easy undulating, the trail bends right, passes through a narrow tree-dotted meadow, crosses a road, and meets Cordilleras Trail at a T junction at 0.14 mile. Turn left.
     The trail cuts through private land, so stay on the trail (don't walk on the road). Not too much to look at here, just abundant poison oak shrubs, annoying non-native broom plants, and some oaks and acacias overhead. You might see a few Ithuriel's spear and blue-eyed grass in spring. After 0.4 mile, at a signed junction, Cordilleras Trail continues uphill, while a gated trail heads under the trees to the right. (You can continue on the paved Cordilleras Trail to create a shorter, 1.3 mile hike.) Turn right. After a few feet, at 0.45 mile, Polly Geraci Trail begins on the left at a signed junction. The dead-end trail continuing straight is suitable for wheelchairs. Turn left.
      The Trail Center built this segment, and it's a lovely hiking-only, gently-climbing trail that is quiet and shady. In spring, look for mission bells, starflower, woodland star, mule ear sunflower, milkmaids, columbine, hound's tongue, giant trillium, Indian warrior, and fetid adder's tongue in bloom. Deer are common, especially on the eastern side of this canyon. On the way uphill, at 0.5 mile, Dusky-footed Woodrat Trail heads off to the right, taking hikers on a long tour through the preserve's northern area. Continue straight on Polly Geraci Trail.
     Switchbacks ascend under buckeye, coast live oak, madrone, and California bay trees. In the understory, gooseberries, snowberries, and honeysuckle nestle among the ferns. Traffic noise from 280 infiltrates solitude as you climb. The foliage gradually shifts to chaparral near a bench, where a small snip of the highway is visible, as well as some large newer homes on the crest across the canyon to the northeast. This section of chaparral is lovely, with tall chamise shrubs and manzanitas, giving the trail a tunnel feel. Spring flowers include zigadene, bluewitch nightshade, and sticky monkeyflower. Elderberry, yerba santa, ceanothus, pitcher sage, and toyon are also present. The trail becomes sandy, and if you look across the canyon, you can see more chaparral-coated rocky hills with small sandstone formations (unfortunately, those hills are not part of the preserve). At 1.47 miles, the trail ends at a signed junction with Hassler Trail -- Dick Bishop Trail begins immediately across from the junction. Hassler to the right ascends to run along a CalTrans vista point (fenced) -- the other end of Dusky-footed Woodrat Trail connects to Hassler there. To the left, Hassler descends to the off-leash dog area. Continue straight on Dick Bishop Trail.
     As the trail begins an easy descent, there are sweeping views to the forested slopes of the Santa Cruz Mountains as well as Edgewood Park, just across a canyon to the south. Sagebrush and coyote brush line the trail initially, but after a while coast live oaks dominate. Dick Bishop Trail ends at 2.15 miles. Turn right.
      Blue and coast live oaks, California bay, and madrone shade the narrow hiking-only trail. Indian warrior, shooting stars, and hound's tongue make a strong showing from late winter to early spring, and broom and poison oak are common. Switchbacks keep the descent a gentle one. In mid-spring you might see fairy lanterns along the trail. At 2.6 miles, Blue Oak Trail ends at the edge of the parking lot.

Total mileage: 2.6 miles
Last hiked: October 3, 2017
Previous visits: November 23, 2004; February 24, 2004; May 2, 2001; and April 17, 2000