Hiring an ISA Certified Arborist is your assurance that a person conducting tree-related work has the adequate knowledge and skills to conduct themselves in a professional and ethical manner. The International Society of Arboriculture is an internationally recognized organization that offers voluntary credentialing for workers and professionals in the fields of urban forestry and arboriculture. Certified Arborists must meet experience requirements and pass an intensive examination process spanning a broad spectrum of topics relating to trees and tree work. ISA Certified Arborists have committed to professional continuing education in order to maintain their credentials, and have agreed to an ethical oath regulating the methods of their work which protect both the health of trees and the clients property (such as using tree spikes/gaffs only in the event of a removal). High Mountain Arborist is owned and operated by Kris Passie, an ISA Certified Arborist (#WE-11471A).
ISA: learn more about Certified Arborists
Calfire: Learn about California Forestry Policy & Defensible Space
Trees Are Good: Learn about the benefits of trees in the human community
American Trails: Your one-stop resource for popular topics related to trails in the US and abroad
PTBA: Educational resource for trail builders and trail users
High Mountain Arborist 