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Angie Jenson

Angie Jenson
Terra Firma Forestry/Fire Ready owner -- since 2003 

ISA Certified Arborist** (RM-7221A)

Consulting Forester

USU Bachelors Degree in Environmental Studies & Forestry

Colorado Master Gardener

Professional Tree Climber & Sawyer

Certificate in Permaculture

5 year Wildland Firefighting career

Forestry Career with Colorado State Forest Service & US Forest Service


Derrick VerHulst

Derrick VerHulst

Professional year-round Tree Climber for solid 22 years

Crew leader and crew trainer

Terra Firma Forestry Loader Operator

Aerial Rescue Trainer

Cullen Weisbrod

Cullen Weisbrod
Terra Firma Forestry ArborCare Manager

Certified Professional Tree Climber

ISA Certified Arborist** 

USFS Fire Crew

Class B tree faller

EMT Certified

Alex Szyleyko

Alex Szyleyko
Terra Firma Forestry Lead Tree Climber

Trainer of all operations

 ISA Certified Arborist**


Joshua Kerl
Forestry Crew Leader

Terra Firma Forestry Foreman

Trainer of all operations

Wildland Firefighter

Wilderness First Responder

National Sawyer Cert Faller C

Professional Tree Climber

**An ISA Certified Arborist is an individual who is trained in the art and science of planting, caring for and maintaining individual trees.  Certification provides a measurable assessment of an individual’s knowledge and competence required to provide proper tree care.  As a Certified Arborist, I promise to you that I will provide you with all the ongoing knowledge from the nation’s leading experts on tree care.

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