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Hilltown Land Trust

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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10:00 AM - Spring Hiking Series: Bullitt to Chapel Brook
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6:00 PM - HLT Reading Group - Vesper Flights
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12:00 PM - Spring Ephemeral Wildflower Walk
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9:00 AM - Late Spring Bird Walk
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9:00 AM - Spring Hiking Series: Keystone Arches
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6:00 PM - HLT Reading Group - The Common Pot
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Spring Hiking Series: Bullitt to Chapel Brook
Spring Hiking Series: Bullitt to Chapel Brook
Apr 28th, 2021    
10:00 am - 1:00 pm
Bullitt Reservation
  • Hike
Celebrate spring with a hike to the Chapel Brook Reservation! Join HLT staff and community members as we venture onto the trails together, in a [...]
More Info
HLT Reading Group - Vesper Flights
HLT Reading Group - Vesper Flights
Apr 29th, 2021    
6:00 pm - 8:00 pm
  • Webinar
This spring and summer, join Hilltown Land Trust staff and community members as we explore some newly released works as well as some old favorites [...]
More Info
Spring Ephemeral Wildflower Walk
Spring Ephemeral Wildflower Walk
May 5th, 2021    
12:00 pm - 1:30 pm
Fare-Thee-Well Wholeness Center
  • Hike
On Wednesday, May 5th, Hilltown Land Trust will host a Spring Ephemeral Wildflower Walk from noon - 1:30pm at Fare-Thee-Well Wholeness Center in Huntington. Led [...]
More Info
Late Spring Bird Walk
Late Spring Bird Walk
May 22nd, 2021    
9:00 am - 11:00 am
Berkshire Trail Elementary School
  • Hike
On Saturday, May 22nd join HLT and members of the Hoffman Bird Club for a guided bird walk in Cummington. We'll visit promising observation spots [...]
More Info
Spring Hiking Series: Keystone Arches
Spring Hiking Series: Keystone Arches
May 26th, 2021    
9:00 am - 1:00 pm
Keystone Arches Trailhead
  • Hike
Celebrate spring with a hike to the Keystone Arches - two keystone arch bridges recently designated as a National Historic Landmark! Join HLT staff and [...]
More Info
HLT Reading Group - The Common Pot
HLT Reading Group - The Common Pot
May 27th, 2021    
6:00 pm - 8:00 pm
  • Webinar
This spring and summer, join Hilltown Land Trust staff and community members as we explore some newly released works as well as some old favorites [...]
More Info
Events on Apr 28th, 2021
Spring Hiking Series: Bullitt to Chapel Brook
Spring Hiking Series: Bullitt to Chapel Brook
28 Apr 21
Ashfield
Events on Apr 29th, 2021
HLT Reading Group - Vesper Flights
HLT Reading Group - Vesper Flights
29 Apr 21
Events on May 5th, 2021
Spring Ephemeral Wildflower Walk
Spring Ephemeral Wildflower Walk
5 May 21
Huntington
Events on May 22nd, 2021
Late Spring Bird Walk
Late Spring Bird Walk
22 May 21
Cummington
Events on May 26th, 2021
Spring Hiking Series: Keystone Arches
Spring Hiking Series: Keystone Arches
26 May 21
Chester
Events on May 27th, 2021
HLT Reading Group - The Common Pot
HLT Reading Group - The Common Pot
27 May 21
  • About
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