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Visit some of our partners sites. We wish to help those who are passionate about trees. Click our partners logos to learn more.

International Society of Arboriculture

The International Society of Arboriculture is a worldwide professional organization dedicated to fostering a greater appreciation for trees and to promoting research, technology, and the professional practice of arboriculture. ISA continues to be a dynamic medium through which arborists around the world share their experience and knowledge for the benefit of society. ISA, aligned on many fronts with other green organizations, is working hard to foster a better understanding of trees and tree care through research and the education of professionals as well as global efforts to inform tree care consumers.

PNW-ISA (Pacific Northwest International Society of Arboriculture)

The mission of the Pacific Northwest Chapter of the International Society of Arboriculture (PNW-ISA) is to foster a greater appreciation of trees and promote the professional practice of arboriculture through education, research, and technology. The local, regional chapter for the International Society of Arboriculture (ISA).

ascending the giants, portland tree care, tree experts

Ascending the Giants

Ascending the Giants is an ongoing series of expeditions lead by two arborists, Brian French and Will Koomjian, to measure the largest tree of each species. These trees demonstrate the pinnacle of what a species can be; they are called champion trees. Now with the support of photographer Sean O’Connor and videographer John Waller the team is able to capture some of the first and only footage inside the canopies of these remarkable trees. With the goal of aiding preservation efforts for champion trees, Ascending the Giants plans to showcase these specimens to increase knowledge of their existence and their ecological importance.

Friends of Trees

Friends of Trees brings people in the Portland-Vancouver metro area together to plant and care for city trees and green spaces.

 

 

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