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Dedicated to protecting the working lands, native habitats and rural beauty of the Hilltowns since 1986

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You are here: Home / Announcements / Welcome Calla, Mariel, and Gary!

Welcome Calla, Mariel, and Gary!

November 17, 2025

A headshot style photo of Calla, who is wearing a gray sweater and smiling in front of a yellow-leaved tree.
Calla Jones
Seen from the shoulders up in warm fall clothing in front of blurred fall foliage, Mariel smiles into the camera.
Mariel Hohmann
Gary, who is wearing glasses and a faded red shirt and smiling into the camera. Cloudy skies and autumn hills are behind him.
Gary Epstein

This fall, we welcomed Calla Jones as our TerraCorps Land Stewardship Coordinator, Mariel Hohmann as our Stewardship Specialist (shared with The Trustees), and Gary Epstein as our newest board member. Get to know them below!

Calla Jones

TerraCorps Land Stewardship Coordinator

AmeriCorps persists in Massachusetts, despite federal attempts to slash the program earlier this year. That means we can continue hosting TerraCorps service members – and the fresh, vibrant perspectives members like Calla bring to our field.

“Since starting my TerraCorps term, I have been deeply inspired by the care and commitment of the Hilltown community,” says Calla about her first months of service. “From learning the fundamentals of trail design from a dedicated volunteer, to witnessing the excitement a landowner feels in uncovering the history of their land, to hearing stories of habitat management and the peace a forest brings its caretaker, it has been a joy to witness the love this community holds for the land.”

Mariel Hohmann

Stewardship Specialist (shared position with The Trustees)

Mariel served as our TerraCorps Land Stewardship Coordinator for two years. When her second service term wrapped up in the summer of 2025, HLT and The Trustees hired her permanently to monitor and care for our conserved lands.

“On my first day at HLT two years ago, I got to take part in conversations around the preservation and stewardship of Clary Hill—and I even stepped in my first-ever bear scat,” says Mariel. “I knew then that I would not be saying goodbye to HLT easily. In my new permanent staff role, I’m excited to continue doing my bit for these Hilltowns, helping organize our conservation monitoring, land management, and trail maintenance efforts.”

Gary Epstein

Board Member

Inspired by his passion for local farms and forests, Gary joined our board as its newest member this fall.

“I’ve been a longtime advocate for land conservation, as well as an entrepreneur who has founded and led multiple clean energy companies,” says Gary. “I’m a resident of Ashfield, and it is important to me to participate in regional efforts to protect the natural beauty and wild areas of Western Massachusetts. As a board member, I’ll join the wonderful HLT community as we work towards this goal.”

Silhouettes of the HLT logo bear and cub.

Filed Under: Announcements, Newsletter

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Biodiversity Monitoring Training: Mushrooms and Fungi
Biodiversity Monitoring Training: Mushrooms and Fungi
Oct 4th, 2025    
2:00 pm - 5:00 pm
  • Hands-On
  • Training
  • Volunteer
  • Workshop
Contribute to community science and learn about ecology in a supportive environment at HLT’s new biodiversity monitoring program series.
More Info
Mill River Walk: Session 1
Mill River Walk: Session 1
Oct 25th, 2025    
10:00 am - 12:00 pm
  • Family Fun
  • Hands-On
  • Kids
  • Partnership Event
Join river scientist Erin Rodgers, Hilltown Land Trust, and town volunteers to observe the Mill River as it flows through Williamsburg. We’ll tour through the center of town and visit bridges, floodplains, and places that teach us about how our town and the river interact.
More Info
Events on Oct 4th, 2025
Biodiversity Monitoring Training: Mushrooms and Fungi
Biodiversity Monitoring Training: Mushrooms and Fungi
4 Oct 25
Events on Oct 25th, 2025
Mill River Walk: Session 1
Mill River Walk: Session 1
25 Oct 25
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