Coast Redwoods Along the French Trail in Redwood Regional Park

Coast redwoods along the French Trail in Oakland's Redwood Regional Park.

Coast redwoods are spectacular trees, often growing to more than 200 feet tall. They can attain phenomenal size. According to Famous Redwoods, the tallest is the Hyperion tree in Redwood National Park, with a height over 380 feet. The 2021 National Register of Big Trees lists the Lost Monarch in Jedediah Smith Redwoods State Park as the Champion coast redwood. It has a circumference of 950 inches (79.2 feet). There are reports of even larger coast redwoods.

Here’s a Calflora/Google Maps image and live link of the distribution of coast redwoods in California. The southernmost naturally-occurring coast redwoods are in Monterey County, in the Southern Redwood Botanical Area of Los Padres National Forest.

The title photo is of coast redwoods along the French Trail in Oakland’s Redwood Regional Park and is from a hike in mid-May.

Related post: Malibu Creek State Park Coast Redwoods

Comparing the Springs and Green Meadows Fire Perimeters

Prior to the Springs Fire the last fire to burn through Pt. Mugu State Park was the 1993 Green Meadows Fire. Here’s a Google Earth image that compares the perimeters of these wildfires.

The Springs Fire perimeter is from the Geospatial Multi-Agency Coordination Group (GEOMAC) and is time-stamped 05/07/2013 at 0348. The Green Meadows Fire perimeter is from the Department of Forestry and Fire Protection – CAL FIRE Fire and Resource Assessment Program (FRAP).

According to FRAP GIS data, the Green Meadows Fire started on October 26, 1993, and burned 38,479 acres. The Springs Fire started on May 2, 2013, and according to CAL FIRE burned 24,251 acres.

Some related posts: Checking on the Chamberlain Trail, A Run Through Pt. Mugu State Park, Springs Fire Burn Severity, Springs Fire 2013

After the Springs Fire: Checking on the Chamberlain Trail

Rock formations on Boney Mountain from the Chamberlain Trail

It had only been a week since I’d run here, but it was still easy to see recovery in Pt. Mugu State Park was continuing at a steady pace. Along the Hidden Pond, Sin Nombre and Blue Canyon Trails daubs of brilliant green contrasted sharply with the somber tones of black, gray and white left by the Springs Fire.



Hopefully recovery will continue at this pace. Most Southern California fires occur in Autumn, when there is a higher likelihood of rain in the weeks and months following the fire. The Springs Fire started May 2. A late season storm moved through the area May 6, helping firefighters to control the fire. The weather station at Circle X recorded about 0.4 inch of rain that day, but the area might not see that amount of rain again for 6-7 months.

In the coastal mountains the marine layer is also a source of moisture. Many of the area’s plants supplement rainfall by extracting water from the moist air. For example, the scalloped shape and surface of coast live oak leaves, and their spine-toothed margin promote condensation and collection of water. On a foggy day you’ll sometimes see a rain-like pattern on the ground under a live oak tree.



This morning the marine layer was in, and skies were partly to mostly cloudy. This was a good thing. Yesterday (June 1) Pierce College in Woodland Hills set a new high temperature record for the date of 104degF. With the hot weather and low humidity the Powerhouse Fire near Lake Hughes had tripled in size. The switch to an onshore flow would cool temps, increase the humidity, and help firefighters to control that blaze.

Today, in addition to checking on the progress of recovery, I wanted to check on the condition of Chamberlain Trail. The Chamberlain Trail is part of the Backbone Trail and the descent from Boney Mountain one of the best in the Santa Monica Mountains.



Last week, on the way to Serrano Valley, we’d seen that the fire had burned up to trail signs at the junction of the Chamberlain Trail and Old Boney Trail. It had been a close call. Brush at the base of the Chamberlain Trail had been scorched and burned, but the fire had not progressed upslope.

But what you can’t see from the junction is that the fire made a serious run up from Serrano Valley on the south side of Boney Mountain. This can be seen on this Google Earth snapshot of a NASA Landsat Satellite Burn Severity image, but from the image it’s hard to tell if the Chamberlain Trail was overrun or not.

Fortunately only a very short section of the Chamberlain Trail about a 0.4 mile from the Old Boney junction was burned.

Some related posts: A Run Through Pt. Mugu State Park, Springs Fire Burn Severity