The plan had been to do a 2-3 hour run from the Chula Vista parking lot west over Mt. Pinos into the Chumash Wilderness, but due to the Zaca Fire, the trail/road to the summit of Mt. Pinos, the Vincent Tummawait trail, and all of the Chumash Wilderness were closed.

Improvising the best we could, we linked together some cross-country ski trails, use trails, a fallen tree, and the Mt. Pinos road, and were able to get in a good trail run.

Update Friday, August 31, 2007. In a press release dated August 29, 2007, the Forest Service announced that some areas within Los Padres National Forest east of Highway 33 that were previously closed to public entry because of the Zaca Fire would be reopened on August 30.

For more information regarding the Zaca Fire and related closures, see the Los Padres National Forest web site.

Some related posts: Mt. Pinos - Mt. Abel Out & Back, Thunderstorm, Vincent Tumamait Trail

With little new growth this Spring and Summer, coyote paths at Ahmanson Ranch have become so well worn that several have recently been posted with "Restoration Area - Please Keep Out" signs. Whether the canny coyotes will choose to cooperate remains to be seen.

Note: Ahmanson Ranch was acquired as open space in part to protect several sensitive species and their habitats. Some (human) use trails have evolved and "Restoration Area - Please Keep Out" signs are a reminder that the area is a preserve.

From a recent run at Upper Las Virgenes Canyon Open Space Preserve (formerly Ahmanson Ranch).

Related post: Trickster

 From a trail run at Sage Ranch Park earlier this year.

Who hasn't pondered the intriguing network formed by the interconnected veins of a leaf? Like many apparently complex self-organized structures, there is a recognizable pattern, but the basis of the pattern is difficult to grasp.

Remarkably, research published in 2002 (S. Bohn et al., Phys. Rev. E, June 2002.) found that there is a simple relationship governing the angles between vein segments in the leaves of dicotyledons, and that this relationship is universal. The study also found that the observed vein angles can be reproduced using a simple force model.

Numerical analysis of leaf scans revealed that the angles between vein segments are directly related to the thickness of the segments. When the vein sizes are similar, the connection appears to form a three-way junction with the angle between the veins about 120 degrees. If the vein sizes are dissimilar, with one much larger than the other, the smaller vein joins the larger at about a 90 degree angle.

The photograph is of a leaf of a Fremont cottonwood (Populus fremontii) along Las Virgenes Creek in Upper Las Virgenes Canyon Open Space Preserve. It was taken on a run from the Victory trailhead on May 16, 2007.

The bright orange-red coloration of these immature large milkweed bugs (Oncopeltus fasciatus) is a warning to predators that they taste bad. Like monarch butterflies, they concentrate foul-tasting compounds from the milkweed plant in their bodies.

Following several instars (molts), the nymph is transformed into the adult insect.

The photograph is from a run at Sage Ranch on July 23, 2007.

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Sandstone Peak and Boney Mountain from Simi Peak

I hadn't done this course in midsummer, but a long run close to home, and an early morning ascent of Simi Peak sounded like a nice change of pace. A dawn start from El Scorpion Park put me on the peak and back to the car before temps got out of hand.

A bee forages on Bigelow's sneezeweed (Helenium bigelovii) at Little Jimmy Spring. From Sunday's Islip - Baden-Powell loop.

A grizzled guardian of the San Gabriel Mountains, the Wally Waldron Tree stands defiantly astride an airy, rock strewn ridge, just below the summit of 9399 ft. Mt. Baden-Powell.

Taken while running the Lower Stagecoach - Hummingbird loop on July 12, 2007.

The Lower Stagecoach - Hummingbird loop is a shorter, somewhat less strenuous alternative to the Chumash - Hummingbird and Chumash - Las Llajas loops. Approximately 6 miles long, about a mile of the route is on pavement, with the remainder on single track trail and fire road. The elevation gain/loss on the loop is about 1300 ft.

Mt. Wilson, Occidental Peak, Mt. Markham, San Gabriel Peak, Mt. Disappointment, and Mt. Deception from the summit of Twin Peaks, in the San Gabriel Mountains.

Mt. Markham (5742') is the craggy peak along the skyline, just right of the centerline of the photograph. The bump to the left of Mt. Markham is Occidental Peak (5732'). To the right of Mt. Markham is the highest peak in the group, San Gabriel Peak (6161'). To the right of San Gabriel Peak are Mt. Disappointment (5960'), and Mt. Deception (5796'). The indistinct summit of Mt. Wilson (5710'), and the observatory, are on the left.

Guardian of the rugged San Gabriel Wilderness, Twin Peaks (7761') has an isolated, high mountain feel. Its flanks drop more than 5000 feet to Devils Canyon on the southwest, and Bear Canyon on the southeast.

We climbed Twin Peaks while doing a point to point run from Buckhorn to Three Points. Including the ascent, the run/hike was about 13 miles, with an elevation gain of about 3200'.

Related posts: Manzanita Morning, Three Points - Mt. Waterman Loop

Angeles Crest Highway has been closed from Islip Saddle to Vincent Gap since 2005 when runoff, rock slides and avalanches from Winter storms damaged the road.

This section of road is being repaired as part of the larger Angeles Crest Highway (SR-2) Pavement Replacement Project.

Glimpses of the highway from the PCT suggest that much of the closed section has been repaired, resurfaced and re-striped.

The photograph of SR-2 is from Sunday's Vincent Gap - Little Jimmy Spring Out & Back run.

Related post: PCT Above Windy Gap