About Us
Hammerdirt is the long-running collaboration of Roger and Shannon Erismann, two environmental scientists and application developers with experience producing research articles and government reports (see hammerdirt Switzerland). In partnership with a Master Arborist and an experienced team of tree inspectors, we bring together expertise in environmental assessment, field data collection, analysis, and reporting.
On the job with Season in Downieville
Our focus is turning observations into useful information. Through the International Society of Arboriculture we maintain domain specific certification and ensure our team is trained to the highest standards.
Hammerdirt California, left to right: Season Dorris - inpsections and safety, Casey Usher - inspections and quality control, Roger Erismann - inspections and software development, Curtis Usher - inspections and field operations.