Warner's Pond
& Gerow Recretion Area

Nature & Beauty
Humans have a great obligation in a post-industrial era to restore and rebuild our knowledge of, and relationship to, the environment in which we live. Fortunately, experiencing a responsible and immersive relationship with nature can also be one of life's greatest joys! Warner's Pond is a beautiful place to cultivate a relationship that respects, preserves, and honors the natural environment alongside human activity and engagement.
Connections & Community
Warner's Pond and its adjacent wetlands make up a 77 acre area of varied and dynamic habitats that are rich with thriving wildlife – right in the heart of West Concord. It is an essential ecosystem that supports a diverse array of life forms including micro and macro invertebrates, native plants, insects, amphibians, fish, birds and mammals. Warner’s Pond contributes to the rich tapestry of life on Earth in general, and in Concord in particular. It is a privilege to have this outdoor sanctuary, that plays a crucial role in preserving biodiversity, right beside village life. Furthermore, the Bruce Freeman Rail Trail runs beside Gerow Park on the north side of the pond, making this intergenerational resource even more accessible.

"Warner’s Pond offers a reflective surface that invites contemplation. It encourages us to pause and ponder the interconnectedness of all life, the cyclical nature of existence, and the beauty of impermanence. In this way, It can foster a deeper appreciation for life itself."
– Concord Resident

Balance
Balance within a Larger Natural System: Warner's Pond is a reservoir behind a small "run-of-the-river" dam, which means that the pond is part of a larger system. When its upstream tributaries – Fort Pond Brook and Nashoba Brook – are flowing, the natural downstream flow of water is the same above and below the Pond's five foot spillway. In other words, upstream water enters the reservoir until its basin is filled, at which point water spills over the dam, continues downstream as Nashoba Brook, and eventually enters the main stem river, the Assabet River. All of these bodies of water are part of a larger system: the Merrimack River watershed. However, a period of drought can cause reduced flow in the two upstream brooks, and therefore the Pond too. And during an extreme drought, a pool of water will remain in Warner's Pond until the drought ends. When the brooks return to higher flow rates, the pond basin overflows, and the larger system is connected again. Warner's Pond, and West Concord, are part of a larger and dynamic stream system.
Balance within a Larger Community: The proximity of Warner's Pond and its surroundings to West Concord Village creates accessible opportunities for people to engage with nature and the outdoors, and become more thoughtful citizens of a broader community that includes wildlife. Residents and visitors can run errands in town, grab a bite to eat, and then walk over to Warner's Pond - or vice versa. Folks can experience and feel the vitality that comes when culture aligns with the environment.
Warner's Pond is home to several unique microhabitats, each rich in biodiversity. These range from expansive, reflective waters to smaller areas of water willow and cattail marshes, tucked-away lagoons, wooded islands, and meandering woodland trails in Gerow Park. Together, these spaces invite visitors to slow down, observe, and immerse themselves in the natural world, fostering a deep sense of awe and connection to the larger ecosystem. As a result, Warner's Pond has the power to inspire people to live in greater harmony with the environment and one another. Witnessing an American Bald Eagle or an osprey swoop down to catch a fish from the Pond's waters is a truly awe-inspiring experience. The story of the American Bald Eagle’s resurgence is a powerful reminder that humans can live intentionally in balance with nature. It’s nothing short of a miracle that bald eagles are now thriving once again alongside our human activities.

Concord is a destination for people who like to kayak and canoe
and be on the water, and each body of water has its own profile of biodiversity; Warner's Pond is no exception. Spend a day out on Warner's Pond observing the plants and wildlife and you will quickly realize there are a lot of thriving native species living in this special aquatic landscape, from freshwater mussels that rest on its bottom to eagles that soar overhead! On behalf of these creatures, it is also clear that something needs to be done about the invasive exotic plants that have become a critical problem. Invasive plants are a legitimate focal point of concern and discussion at Warner's Pond, and again, it is not an exception. How to manage invasive species is a topic of interest all over Concord, and throughout the world. Especially in places where humans have disturbed and altered the landscape.
Exploring and understanding how to best manage the most menacing invasive species is a valuable undertaking. Doing so would be a great service to the native plants and wildlife that are present there. Listed below are a few of those native plant species found at Warner's Pond:
Water Starwort
Coontail
Duckweed
Yellow and White Water Lilies
Ribbon-Leaf Pondweed
Floating-Leaf Pondweed
Thin-Leaf Pondweed
Flat-Stem Pondweed
Pickerelweed
Water Smartweed
Burreed
Buttonbush
Sweet Pepperbush
Highbush blueberry
Water Willow (swamp loosetrife)
Cattails
Hemp Vine


Native Species
Interventions
For thousands of years, there were Native Peoples inhabiting the North American continent, and their relationship to the land was often harmonious. When Concord was first settled by Europeans in 1635, folklore says there were twelve English families who "founded" the town by purchasing it from the Pennacook Indians. Other oral traditions claim that the land was exchanged in a bargain with the Squaw Sachem, the Sagamore Tahattawan and other Indians. Today, there are approximately 18,950 residents living in Concord, and another million or so visitors come to enjoy this famed New England town every year. There is a four lane highway that bisects the town, along with a commuter train, and hundreds of roads. Human population and land disturbance has been consistently growing since the 1600's. This is true for Concord, and for large portions of the planet.
Many desirable "quality of life" factors, population growth, housing shortages, and lack of affordable housing are all leading to more construction projects, including high density housing, in Concord. As the year 2024 begins, there are several active developments planned along the banks of the Assabet River, and Warner's Pond finds itself in the heart of business zoning. State level leaders recently announced that MCI Concord will close in June of 2024, and there is excitement and speculation that this land will also be available for development. Figuring out how to manage continued expansion and growth, while protecting and caring for open spaces such as Warner's Pond, is an ongoing challenge. But finding solutions to such challenges is well worth it, because the rewards such spaces bring to communities are priceless.
Warner's Pond is an important feature in a historic landscape, with roots reaching back to the founding and settling of Concord. Over the centuries, the landscape has adapted to meet the evolving needs of the community. Its waters have powered mills and manufacturing, served as a hub for recreation, and provided a rich, biodiverse habitat for wildlife. Warner's Pond, along with its larger riverine system, has generously supported the village that grew up around it. However, to continue offering ecological and recreational benefits for Concord, it now requires greater attention and care to remain healthy and sustainable.
Steady human disturbances to this landscape have changed its natural processes forever; there is no returning to the "pristine" landscape the Native People maintained, and that the early European settlers encountered when they first arrived. However, the situation is not hopeless; it has reached a point in which thoughtful conversations, decisions and interventions, like the few listed below, are paramount.
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In the past, US Fish and Wildlife installed and tracked Wood Duck nesting boxes at Warner's Pond as part of a monitoring program, and a few nesting boxes remain, though monitoring has stopped. Fortunately, there are reports that Wood Ducks are still present in Warner's Pond.
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Another successful intervention was the introduction of beetles as biocontrol agents to manage invasive Purple Loosestrife. The beetles eat the plant, which controls its spread. If you look carefully, you can find such beetles at Warner's Pond, and the invasive Purple Loosestrife that was once a huge problem, is now largely under control.
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A third intervention that has been somewhat effective in managing invasive water chestnut plants is mechanical hand pulling of the plant before it drops its seed pods. These plants remain a nuisance, but, with routine hand pulling, can be controlled.
Maintaining the ecological health and beauty of Warner's Pond requires ongoing, proactive care. Various interventions, such as monitoring programs, biocontrol agents, and hand pulling of invasive plants, have already proven effective to some degree. Additional measures have been identified to further restore this remarkable pond, which feels like a wildlife refuge while paddling and observing its rich diversity of plants and animals. For example, dredging has been recommended to remove accumulated sediments, improve water quality and fish habitat, and eliminate invasive aquatic plant seeds. The safe use of herbicides and drawdown practices has also been suggested to reduce invasive plant populations and control their spread. Educating boaters about the importance of "clean, drain, dry" practices would help prevent the accidental transport of invasive species from other bodies of water, further safeguarding Warner's Pond.
These are important interventions that would ensure the pond remains both a thriving wildlife refuge and a cherished resource for aquatic recreation. Given the deep connection the pond has to our community's history and culture, it is only natural that we prioritize its restoration and care. Future generations will have the opportunity to write new chapters on how humans and nature can coexist harmoniously in this fertile and storied landscape, continuing to honor and sustain the legacy of Warner's Pond.





Breeding
It is an active breeding site for hawks, owls and ducks. In the past, US Fish and Wildlife installed and tracked Wood Duck nesting boxes in the pond as part of a monitoring program, and a few nesting boxes remain though monitoring has stopped.

Feeding
In the spring and fall seasons, Warner's Pond continues to be a stopover location for common and rare migratory birds such as the pied-billed grebe, and the Pond's reliable open calm waters provide fishing and foraging habitat for osprey, bald eagles, and mergansers. Warner's Pond and its surrounds are a well established ecosystem.

Nurturing
In a healthier state, there were many species of turtles living in and around Warner's Pond. There were reports of Box Turtles and Spotted Turtles before invasive plants began to appear. And today, there is a healthy population of Painted Turtles and Snapping Turtles.

Living
Warner's Pond is teeming with life and biodiversity. Paddling around Scout Island is about a mile long loop, and in that span you will cross beaver lodges and likely hear the smack of a beaver tale warning you if you get to close. Depending on the time of year and time of day you will see any number of native plants, insects, fish, birds and mammals.
Wildlife Photos









Landscape Photos








