Agriculture/Horticulture Agent

emailElizabeth D'Imperio

Elizabeth D'Imperio - Ag/Hort Agent

Elizabeth D'Imperio joined the Gallatin County Extension Office in January of 2023.  Elizabeth has diverse experience as both a researcher and educator.  She has worked on projects ranging from invasive weeds to soils and has experience teaching preschoolers through adults.  She earned her Master’s Degree at Montana State University in Land Resources and Environmental Sciences.



4-H Youth Development Agent

emailMolly Yurdana

Molly Yurdana - 4-H Agent

Molly Yurdana hails from the foothills of northern California, where she worked for various agricultural marketing and retail companies before relocating to Bozeman in 2018. After receiving her B.S in Agricultural Education Extension from Montana State University, she joined the Gallatin County MSU Extension office in 2020 initially as an intern. She was later hired on as the Ag/Hort Extension Agent in 2021, then transitioned to become the 4-H Youth Development Extension Agent and Gallatin County Extension Department Head in 2022. She manages over 600 local youth members and 100 volunteers and functions as the bridge between MSU Extension, the State 4-H office and the county 4-H program.


4-H Assistant

emailColyn Wiening

Colyn Wiening - 4-H Assistant

Colyn Wiening joined the Gallatin County 4-H Extension office as the 4-H Assistant in 2021. She provides support to the 4-H programs, families and manages all the 4-H finances. Growing up Colyn spent her summers with both sets of grandparents in Western Colorado on their fruit orchards or walking the irrigation ditches and learning about farming. Colyn double majored at Colorado State University and graduated with degrees in both Animal Science and Agricultural Business. She has spent the last several years as a 4-H volunteer with her daughters’ projects.



Administrative Assistant

email Kari Ballenger

Kari Ballenger - Administrative Assistant

Kari Ballenger is the administrative assistant providing assistance to all office agents in their events and programs. Kari joined Gallatin Extension in 2020. Kari is a registered dietitian and prior to moving to Bozeman she worked as a clinical dietitian for a community hospital. 




903 North Black Ave
Bozeman, MT 59715

Phone: (406) 582-3280
Hours: 8:00am - 5:00pm Monday-Friday


For the entire Montana State University Extension Faculty Directory, click here: Departments | Montana State University