Monthly Archive for: 'August, 2017'
Stump History

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?  

Twisted Trunk

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?  

Great Great Doug Fir

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?  

Hole in the Tree

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!  

A Satellite View

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.  

Canyon Mountain

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?  

Old Man Oak

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.  

Too Much Blackberry!

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.  

Grandma Maple

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?  

Capitol Christmas Tree

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?