Rad◦i◦cle : Groundtruthing 101

Thursday, April 15, 2021 - 6:00pm to 8:00pm

Bark’s network of volunteer groundtruthers help us monitor every logging project and destructive action in Mt. Hood National Forest and surrounding public lands. The information gained from groundtruthing allows Bark to provide the public with all the information needed to understand, and engage in, decisions affecting public forest lands. Photos and data collected in the field are uploaded to our online database, which also contains maps and documents of every project we are currently monitoring.

Groundtruthing is simple. Visit a proposed timber sale and document what the Forest Service or BLM is proposing. This information enables Bark, and you, to compare what the agency is planning on the ground versus what it states in the timber sale documents. Past groundtruthers have found discrepancies in agency information and documented rare plants and animals that have led to the cancellation of some or all of the proposed logging.

This groundtruthing training is in two parts: Groundtruthing 101 will meet from 6:00pm to 7:30pm on Wednesday April15th on Zoom to go over the basics, learn how to research timber sales using Bark's resources and read timber sale maps in preparation for travelling to the forest. The second part, Groundtruthing 201will occur on Saturday April 17th from 10:30am-12:00pm on Zoom where we'll review Bark's groundtruthing form and prepare you to join us for a day in the field. 

Click here to register for Groundtruthing 101.

Registration is required for both parts, taking place on Zoom. After registering, you will receive a confirmation email containing information about joining the meeting.

This workshop is part of Rad◦i◦cle, Bark's activist training program. With courses on forest ecology, forest management policy, timber sale monitoring, forest first aid and hike leading, public lands advocacy and community organizing, Rad◦i◦cle is designed to cultivate powerful forest defenders who are ready to take action to protect clean water, biodiversity, and the incredible forest ecosystems where we live and around the world.

Any questions? Send an email Misha VanEaton, our Forest Watch Assistant, for more details!


A masked Bark volunteer, clad in an orange vest, is writing a clipboard documenting information. The sun peaks through the canopy, scattering dappled light across the greens and browns of the forest.