HJ Andrews Experimental Forest

What's Happening at the HJA

The forest where the Great Tree fell is a REAL place! – the H. J. Andrews Experimental Forest in the Cascades Mountains of Oregon.  For more than 60 years the H.J. Andrews Forest has been  an experimental forest for the U.S. Forest Service.  In 1980 it became a Long Term Ecological Research site of the National Science Foundation.  Researchers have been studying the system from “top” to “bottom”:  in the trees and downed logs, in the air and stream waters, in the litter and soils.  Research these days include:

  • The flow of air, water and energy
  • Biodiversity and seasonal changes in  plants, animals and habitats
  • How biota are responding to long-term changes in wood decomposition and climate

Main website for HJ Andrews

Photo gallery

Learning and Discovery for Kids

In Canopy Connections kids climb high into the canopy of doug firs and poke around in the forest. 
Tree climbing is organized by professional tree climbers and activities for middle schoolers are led by University of Oregon Environmental Studies students.

Streaming video shows kids in the trees at the H J Andrews Forest.

Check out the virtual Lookout Creek Interpretive Trail that takes you to seven spots on the old growth trail. 

On the lookout:  Cameras posted at particular spots in the Andrews forest show you what’s happening at key research sites.  What differences do you see at the Lower Lookout Riparian site (down in the valley of the forest), compared to the Roswell Tower high up on the ridgeline?

Up and coming:  a streaming camera at the Discovery Trail  at the HJA.  We call this a “phenocam” meaning a video camera streaming constantly to show changes in phenology (seasonal changes) at a particular place on the trail.  

Long Term Ecological Research in Other Places

Other books for kids written about other ecosystems
stories about other research sites include the Rocky Mountains, Alaska and the Pacific Ocean!  

Descriptions of all the fascinating schoolyard sites can be found at: http://schoolyard.lternet.edu

In the “Data” section of this website you’ll find the LTER arthropod data set from the Hubbard Brook Forest in the northeast, Shortgrass Steppe in Kansas, and two desert sites at Sevilleta and the Jornada in New Mexico.  Go bugs!