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Cranes and Trees – A Workshop With Mark Chisholm

April 6, 2019 @ 8:00 am - 4:00 pm


A workshop focusing on practical and advanced rigging, estimation of weight, and proper cuts associated with crane use. It will include class time and an outdoor demonstration. Mark Chisholm, working arborist, instructor and ISA world champion climber will lead the workshop.

7:30 Registration and Check-In
8:00-9:00 General Safety Guidelines
9:00-10:00 Planning the Rigging/Selection and Technique
10:00-11:00 Making the Cut-Weight Estimation and Cutting Technique
11:00-11:30 Drive to Hays County Memeorial Park
11:30-12:00 Lunch (provided)
12:00-3:30 Crane Tree Removal Demo
3:30-4:00 Questions and Answers and Close

Your Instructor

Mark Chisholm

Mark J. Chisholm is a third generation arborist who works alongside his father Steve, mother Laura and brother Stephen, for the family business the Aspen Tree Expert Co., Inc. Mark has been climbing trees since around the age of twelve and admits that it is still his passion today.

Click here for more information and to register


Texas Chapter International Society of Arboriculture
Gene Gehring


Dunbar Recreation Center
801 Martin Luther King Dr.
San Marcos, TX 78666 United States
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