Hidden History of Chelmsford

Say hello to “Throne Rock” at Koulas Farm

November 14, 2025

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Say hello to "Throne Rock" at Koulas Farm. Every now and then when you are out doing restoration work or cleanup, something interesting pops up. Koulas Farm has a few of these surprises that over time have earned names of their own. There is "Stone Bridge," "Split Rock," "Silage Pit," and "Big Red." Mention any of these to the regulars and you will get an instant nod and probably a story about how it got its name.

Work party planning

It’s all Down Hill a Sledding Hill Evaluation at Koulas Farm

November 14, 2025

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As a member of the Koulas Task Force, I know there has been interest in adding a sledding hill there because safe public options in town are limited. The town has always said it is open to new ideas from residents, so from time to time I come up with them. Sometimes it’s ideas like making Red Wing family friendly, building community gardens, adding pollinator gardens, or finding locations for a Storybook Trail. This is not something new. Sometimes these ideas happen, sometimes they don’t, and sometimes a variation happens. That is understood with any plan and is key to a good community decision.

Hidden History of Chelmsford

The Lime Quarry and the Lost Pond

November 14, 2025

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The Lime Quarry Reservation off Littleton Road holds one of Chelmsford’s oldest industrial stories. Long before the highway or modern houses, this area was a working quarry where stone was burned into lime for building mortar and plaster. The first kilns and quarry pits appeared in the 1730s, and by the early 1800s as many as five separate lime operations were active. The work was tough and hot. Quarrymen split limestone from the ledges using hand drills and black powder, loaded the stone into ox carts, and hauled it to kilns built into the hillside. Inside each kiln, the stone was fired for days with stacked wood until it turned white and crumbly. The finished lime was packed into barrels and shipped to builders in Chelmsford and Lowell.

It Was Twenty Years Ago Today

It Was 20 Years Ago Today

November 5, 2025

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On this day in 2005, four people met at the Lime Quarry in Chelmsford for the first official workday of Chelmsford Open Space Stewardship.

A snowman ornament mad from recycled materials hung on one of the scavenger hunt trees in past years

The Amazing Decorated Winter Tree Scavenger Hunt

November 3, 2025

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The Amazing Decorated Winter Tree Scavenger Hunt has become a tradition for many families and civic groups and is a fun way to enjoy our open spaces during the winter season. We welcome new decorators and returning decorators.
This program highlights community spirit, creativity, and outdoor enjoyment. Trees are not hidden. They are placed along main trails so families can easily see them and safely stop for a visit and photo.

Chelmsford Open Space Stewardship logo

Welcome to the COSS Website

June 12, 2025

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This is going to be the main distribution location for information about the Chelmsford Open Space Stewardship. The site is still being developed and functionality tested and added.
Keep an eye on the site for further information of the future of COSS, plans, events, and more!