Look around, and you will see at least two large old stumps—much larger than the live trees around here. What does this tell you about the history of this part of the forest? Do you think these live trees will ever get this big?
This old dead tree looks different in one special way: what is it? How could this have happened to the tree? Would it have been a good thing for the tree? a bad thing? Have you ever seen another tree like this?
The cage behind this sign protects a buried water tank belonging to the neighbor who lives downhill. This is called an easement, allowing the neighbor to use this property. Sometimes neighbors help each other out!
The Douglas-fir snag (standing dead tree) behind this sign is several hundred years old. What can you imagine it has seen over its many years? If you look around, you will see another very old Douglas-fir in the vicinity.
Look up high at the smaller Douglas-fir and Pacific madrone trees here: what do you see? How could this have possibly happened? Do you think this is affecting the growth rate and vitality of these trees? Why or why not?
Look up at the Pacific madrone here: do you see something odd? How did this possibly happen? Come up with three plausible hypotheses. When you explore these hypotheses and find the answer, let us know, please!
Did you know that satellites like Landsat take pictures of the ACCF site? This post marks the corner of a Landsat pixel: for GLOBE and other activities, we have located these corners to define Landsat plots throughout the site.
Look up at the mountain south of here; it’s called Canyon Mountain. The highest point in this watershed is Tellurium Peak, to your right. See all the different forest stands on the mountain? What caused this?
This California black oak is getting to the end of its long life. How do we know this? During certain times of the year, mushrooms abound at its base—a sign of the root disease that, one day, will topple this lovely tree.
One problem in this riparian area is the profusion of blackberry, an exotic that takes over the landscape, and is hard to control without chemicals. We are evaluating some safer chemicals in the test plots behind this sign.
Take a look at the culvert where Alder Creek goes under the driveway. This special culvert was designed to be fish friendly: what do you see in it that fish would like? Do you see any fish in the pools?
Look at the bank on the other side of Alder Creek: what do you see? How could the current of Alder Creek have done this? (If you are looking at Alder Creek in the dry season, it may be hard to believe!)
Look around near this small intermittent stream: there are lots and lots of sword ferns! Why do you think they are growing here? Hint: what do you think a fern needs in terms of sunlight and water?
The wild apple tree behind this sign doesn’t make many apples. How do you think it got here? Why do you think it may not be as productive as a garden apple tree? Does it still benefit wildlife in some way?
One of the oldest trees in the Alder Creek riparian area, Grandma Maple has seen many a treehouse, but now loves to see young people learning here. Do you see the trim she got in 2016 to remove dead wood?
This Douglas-fir seedling came from a cone off of the 70′ tall 2002 Capitol Christmas Tree, donated by the Umpqua National Forest and transported all the way to Washington, DC. Do you think it will grow as tall as its parent?
Look upstream from the footbridge: this is Alder Creek (hence Alder Creek Community Forest). After a big storm it can be a torrent, but toward the late summer and early fall it dries to a trickle. What animals live in Alder Creek? Alder Creek and Jordan Creek (found on the NW corner of the ACCF …
Look around this riparian area, and you’ll see small trees with brightly colored flagging on them, transplanted here first in late 2014, then again in 2016 and 2017. How many different colors of flagging can you see? Each color represents a unique tree species. 2014 Replanting For a key to all flagging colors and details on …
Riparian zones are adjacent to streams. They provide important shade to streams and aquatic species, and some plants grow only in riparian areas. Do you see differences in vegetation nearer vs. farther away from the stream? Riparian areas are central to the Oregon Conservation Strategy, and their assessment is central to the Oregon Plan for Salmon …
Every stream has an origin called its headwaters, where it starts to flow. The area near here is the headwaters of an intermittent stream that flows during wet months into the draw (little valley) below the trail. Where does the stream go?