Big Trees of the Freshwater Creek Drainage, Humboldt County
Old-growth forests are forests that have developed over long periods of time, without experiencing severe, stand-replacing disturbance—a fire, windstorm, or logging. Within the redwood forest belt, of the estimated 1.6 million acres of redwood forest remaining, only 7% is old growth. The remaining 93% is considered some level of second growth. Around Humboldt Bay where we live that number is approaching 99%. The old-growth trees that do remain are often mixed within the second growth forests. Most often, an old tree was left behind by loggers because of imperfections like broken tops or less than optimal heartwood. This post explores some of the residual old growth in my neighborhood.
I have known about this Monterey pine (Pinus radiata) for years.
In 2004, I first took my 7th graders from Fortuna Middle School to make observations in their science journals in the forest surrounding this beauty. I always knew it was big, but did not know it could be the largest of its species.
The history of the forest at Rohner Park is not well documented, but as luck would have it I found a few answers while measuring the tree. With laser rangefinder in hand, an old-timer from Fortuna was coincidentally walking past me and asked what I was doing. His understanding was that Boy Scouts had planted a handful of pines in the area after the old-growth redwood forest was logged by cross-cut saw–in the years just before the invention of the chain saw in the 1920s. That would mean that these trees were, most likely, planted between 1900-1920. This makes the Monterey pines here, and the mature second-growth redwood forest, nearly 100 years old.
It is an impressive tree, competing with the forest giants of the North Coast like redwoods, Douglas-firs, and grand firs. Conditions must be right for this pine to survive among these other shade-tolerant trees. Pines, remember, are usually not shade-tolerant. That being said, if this tree was planted before the redwoods re-grew after logging in the early 1920s, then it got a head start and grew tall, in a race for light, against the other species in the park. Amazing stuff, to see a 160′ pine eking out an existence in the rainforest!
Or…Why Star Wars fans should love conifers–especially redwoods
Return of the Jedi had a major influence on my experiences as a youth. I wanted to be able to use the force like Luke Skywalker, as do many children again in 2016. The Star Wars phenomenon has trickled down to our 3 year-old son from his Kindergarten classmates at Montessori as well, so we decided to seize the day and go for a hike that combined the legend of the force with the power of the redwoods, and explore where science fiction meets natural history.
Redwoods might just be the grandest species in the plant world—from top to bottom they are the epitome of grandeur. The tallest redwood is 379’ (and still growing), while one of the most massive redwoods is a mere 320’ but has a basal diameter of nearly twenty-six feet. Those are some impressive beings! The largest redwoods grow in northwest California, where they favor mountain slopes and river terraces close to the ocean while also being situated in the summer fog belt. Across the coastal landscape redwoods domineer a highly specific range—when soil, water, and exposure are optimal. The Owen Cheatham Redwood Grove is a great place to visit these giants.
Exploring the San Gabriel Mountains National Monument
In my search to understand Bigcone Douglas-fir (Pseudotsuga macrocarpa) within the Angeles National Forest, I found myself in secret canyons and along steep hillsides that few people have ever explored. I thus took it upon myself to document more than just our selected data plots for Bigcone. In previous posts, I’ve shared some of the large angiosperms I’ve run across. Here is the documentation of the second largest Pseudotsuga macrocarpa yet measured — a record Bigcone Douglas-fir.
This Bigcone was found on the edge of a wash called Holcomb Canyon within the Devil’s Punchbowl Natural Area. The tree is nearly as big around as the record specimen in Baldy Village but just not as tall. I have heard a rumor that the Baldy tree lost some of its crown — so I wonder if the numbers I have for this tree are still correct. Regardless, the tree in the Punchbowl is much more dramatic, being that it is within the Pleasant View Ridge Wilderness and not in the middle of town!
I need to start by clarifying something: in last post about a giant Canyon Oak, I mentioned that I was not a big tree hunter. This post, a few days later, is about a big tree. I think I have become a big tree hunter…
Every day for the better part of the last two weeks, I have been walking through the San Gabriel Mountains getting to know Bigcone Douglas-fir as part of a project with the Angeles National Forest and the California Native Plant Society. I’ll post more about that in the near future. For now, lets look at the white alder (Alnus rhombifolia) I measured in the Pleasant View Ridge Wilderness within the San Gabriel Mountain National Monument while working on that project. Stats on the past record tree can be found HERE.