Welcome to the Hart’s Brook Nature Preserve! The preserve features woodlands and wetlands, a master garden and hiking trails. Prior to becoming a preserve the property was known as the Gaisman Estate and was owned by the inventor of the famous Gillette safety razor blade Henry Gaisman. In 1957, Gaisman passed the title of the estate to the New York Archdiocese. In later years, Marion Woods Convent took ownership of 11.5 acres of the estate. The remaining acreage was purchased by the State of New York (who retains 50% ownership of the property) Westchester County and the Town of Greenburgh in 1999.
Hart’s Brook Nature Preserve
Harts Brook Nature Preserve Trail Map
Welcome to our virtual hike! Today we are going to cross brooks, pass interesting rock outcroppings and walk around 2 miles on 5 different trails! Our guide will be the trail map shown above.
Red Trail Meadow
Ready to start? From the parking area, let’s head west briefly entering the forest on the red trail. Paralleling Ridge Road, the Red Trail leaves the forest and walks through an open meadow flanked by enormous Norway Spruce trees.
Norway Spruce Red Trail
As we walk past the Norway Spruce trees we pass a spur of the red trail to our left which leads back to the parking lot. Deciduous wooded wetlands are appearing to our right as we leave the meadow and re-enter the woods. Wait! What’s that sound? Spring Peepers! Spring Peepers are a small frog common in wetlands and are among the first frogs to call out in early spring. Thus, Spring Peepers are a true harbinger of spring! Their Latin name (Pseudacris Crucifer) is named because of a dark cross which forms an “x” on the frog’s dorsa. Because of their size, Spring Peepers are difficult to locate and we do not see any today.
Green Trail Blaze
Continuing south we have come to the end of the red trail and are at an intersection with the green trail. According to our trail map we will come to a pond if we head east on the Green Trail.
Going to the Pond
Let’s go east on the green trail and check it out. After only a few minutes of walking we’ve found that we have left the green trail and are now on the yellow trail. The flora is quickly changing from deciduous forest to evergreens consisting of stately Eastern Hemlocks and Rosebay Rhododendron the closer we get to the pond.
The Hemlocks have an overall healthy appearance with very little die-back from the Hemlock Wooly Adelgid. The Hemlock Wooly Adelgid is an exotic pest from Asia accidently introduced to North America circa 1924 and is currently established in eleven states ranging from Georgia to Massachusetts. It is estimated that 50% of the geographical range of the Eastern Hemlock has been affected by the adelgid. Biological control (i.e. using adelgid predators to control infestations) has been the major emphasis of control since 1997.
Yellow Trail Bridge
Crossing a wooden bridge over Harts Brook we come to a bench overlooking the pond and its outflow dam.
Yellow Trail Bench with view of Pond
Let’s pause for a few moments and take in the beauty of our surroundings.
Hart’s Brook Park Pond
After taking in the view of the pond we’re going to continue northeast on the yellow trail following the shore of the pond. As we walk we pass several Wood Duck nesting boxes.
As we continue walking on the yellow trial we pass an old stone warming house which was part of the original Gaisman Estate. Leaving the stone warming house, the yellow trail is taking us east back to a branch of the green trail.
Heading south on the green trail we find ourselves on an orange blaze trail heading east.
Rock Outcrop Orange Trail
An interesting large rock outcrop appears to our left as we slightly climb on the orange trail.
We are now at an intersection with the blue blazed trail and it sounds like we are hearing more music of spring!
American Robins are searching for lunch and making sure we know they are present.
Blue Trail Stream Crossing
Heading east on the blue trail we find ourselves crossing a brook.
Pine Grove Blue Trail
Passing close to private residences the blue trail turns northeast and slightly climbs through a grove of White Pine trees.
As we pass a spur of the blue trail on the left the trail now becomes an asphalt path as we come close to the Maple Avenue entrance to the preserve. From here we follow the blue trail west back to the orange trail.
Blue Trail Stream Crossing as seen from Orange Trail
The stream crossing we did earlier on the blue trail is visible to our left.
We are now back at the Green Trail we left a while back. Let’s head north which will take us back to the yellow trail.
After only a short distance on the yellow trail we have just stepped out of the woods and are by the master garden area of the preserve. We are now back at the parking lot where we began. Thank you for joining me today on this virtual hike! I hope it has inspired you to check out Hartsbrook Nature Preserve for yourself!
The preserve is located at 156 Ridge Road, Hartsdale, NY.
The Great Swamp Outdoor Education Center (GSOEC) consists of a 44 acre portion of the Great Swamp managed since 1963 by the Morris County Parks Department. The GSOEC hosts guided nature walks, school, scout and public educational programs.
Herp Study in Progress
The GSOEC hosts periodic studies of the flora and fauna to determine the overall health of the Great Swamp.
The origin of the Great Swamp begins with the melting and subsequent retreat of the Wisconsin Glacier around 25,000 years ago. Debris from the glacier blocked the passage of an ancient river creating an enormous lake known as Lake Passaic. Lake Passaic is thought to have been 30 miles long and 10 miles wide. Over time, an outlet was formed near Little Falls NJ draining the lake via the Passaic River. This drainage is still occurring today. Today the Great Swamp forms a remnant component of the once great Lake Passaic.
In the late 1950’s the area now known as the Great Swamp was identified by the NYNJ Port Authority as an ideal location for a new jetport. The Great Swamp Conservation Foundation mobilized volunteers to protect the Great Swamp. The result was the establishment of the Great Swamp National Wildlife Refuge. The Great Swamp Conservation Foundation later became the North Jersey Conservation Foundation and then finally known as New Jersey Conservation Foundation.
GSOEC features five short loop trails. Two of the four trails (Orange & Red) are interpretive and follow 16 markers listed in a self guided trail booklet available at the education center.
Ready to take a virtual tour of the Great Swamp Outdoor Education Center? Let’s Go!
Stop by the kiosk near the parking lot to pick up a trail map. From the kiosk, head to the education center to view the exhibits on the flora and fauna of the Great Swamp.
Outdoor Education Nature Center with Kiosk
Mammals of The Great Swamp
Endangered in New Jersey
After checking out the exhibits inside, it’s time to start our hike.
Orange Trail Trailhead
Let’s begin our virtual hike by taking the Orange Blazed trail located to the south of the education center. The Orange Trail at .61 Miles is the longest trail present in the GSOEC. It contains Markers 1-10 from the self guided trail.
The first marker, regarding the Red Maple tree, appears shortly after the beginning of the orange trail. Red Maple is the most common tree in the Great Swamp as well as the eastern deciduous forest.
Red Maple Leaves
Red Maple’s flowers are red in the spring and the leaves turn a brilliant red in the fall. Though the Sugar Maple may come to mind when it comes to maple syrup, Red Maple can be tapped for syrup as well. Red Maple should be tapped before budding occurs as the buds change the chemical makeup of the syrup.
Continuing on the orange trail, marker #2 comes into view on the right where a large depression may be found.
The large depression is known as a vernal pond. Vernal ponds do not support fish and may be dry or filled with water. Due to the lack of predators (i.e. fish) the vernal pond provides a safe haven for amphibians such as Wood Frogs, Spring Peepers and Blue-Spotted Salamanders among other species to breed and lay eggs. Continuing past the vernal pond, two fenced areas appear shortly after on the left.
Marker 3 with Deer Enclosure in background
Marker # 3 explains that these sections of the GSOEC were fenced in 2009 to study how plant communities recover from the damage caused by an overpopulation of white tail deer.
Marker 4 EcoTone
Marker #4 describes an Ecotone. An Ecotone is anywhere two habitats meet and create an edge. The Ecotone present here was created by the Power line right of way. The positive aspects of this man-made Ecotone is the creation of suitable nesting habitat for the local turtle population in addition to providing a valuable hunting ground for birds of prey. On the flipside, the disturbed ground caused by the creation of the power lines have provided ideal habitat for invasive plants as Autumn Olive, Multiflora Rose, Garlic Mustard, Wineberry & Japanese Barberry.
Marker 5 The Pond
Continuing in a southwest direction, the dirt path changes to a boardwalk as the trail traverses the wetland area.
Orange Trail Boardwalk
A short boardwalk appears to the right of the main boardwalk which leads to the Pond which is marker #5.
Ponds are usually less than 18 feet deep. Eventually as plant matter and other organic material decays, the pond will begin to become a marsh, progress to a forested wetland and finally upland habitat after many years.
Continuing on the trail leads to Marker #6 which describes Poison Ivy which is seen here growing as a hairy vine. Poison ivy contains a clear liquid known as urushiol which causing a burning itching rash in many people. In addition to a hairy vine Poison Ivy can be found as a shrub reaching over three feet tall or as a trailing vine on the ground.
Several rhymes exist warning of the dangers of Poison Ivy:
At this point of the hike you may notice abundant Mountain Laurel. Marker # 7 appears here.
Marker 7 The Browse Line
Its purpose is to briefly touch upon “the browse line”. The over abundant white- tail deer have stripped all leaves of vegetation from six feet down. If the current trend continues, there may not be a forest here in the future.
From this area, the trail head of the .23 of a mile Blue trail loop appears.
Blue Trail Trailhead
Let’s take a brief break from the interpretive trail to explore this short trail.
Blue Blaze Swamp Chestnut Oak
The Blue Trail Loop goes through an upland area consisting of mostly Mountain Laurel and Swamp Chestnut Oak.
Dried Vernal Pond Blue Trail
The trail encircles a small vernal pond (the vernal pond, seen here is dry during our virtual tour).
Blue Trail end
Completing the Blue Trail Loop, head back to the Orange Trail and to Marker # 8 which describes the function of a rotting log in the forest.
Standing dead trees or snags play an important role in the eastern deciduous forest. Woodpeckers including Pileated, Downy and Red-Bellied among others excavate holes in the dead trees searching for tasty insects. These excavated holes in turn create habitat for birds including Black-Capped Chickadee. Fungus will usually invade the dead wood further softening it. Eventually, the tree will fall to the forest floor where it will continue to decay creating a rich organic soil which will support future species of trees.
Marker 9 Phragmites Marsh
Proceed east to Marker # 9 The Phragmites Marsh. Phragmites (aka Giant Reed) is a giant species of grass which can grow from 10-20 feet. Phragmites thrives in disturbed areas. Phragmites found in the Great Swamp are native to the eastern deciduous forest. Phragmites are considered invasive because of its aggressive growth and tendency to overwhelm all other vegetation.
Outdoor Study Area
From here the trail leaves the boardwalk and heads south to marker # 10 which passes an outdoor study area and leads to a Wigwam replica.
The Lenape Native Americans (the original people) created Wigwams as shelter from saplings, tree bark and Cattail Mats among others. This replica would have been big enough for two people. Marker #10 is the last marker for the orange trail.
Orange Trail end
After heading back from the Wigwam, turn right on the Orange Trail and follow the trail a brief distance to its terminus.
Prayer of the Woods
The “Prayer of the Woods” sign is found right before the start of the Red Trail. After reading the Prayer and taking in its message, turn right to start hiking the .39 mile Red Trail to continue the interpretive trail.
Red Trail Trailhead
The first marker on the Red Trail is #11 which identifies trees found in the Eastern Deciduous Forest.
Marker 11 Deciduous Forest
Trees found in the Eastern Deciduous Forest include the below among others:
From here turn left at the sign leading to the education center to go to Marker # 13.
Marker 13 Stream
The Red Trail approaches Marker #13 as it crosses a stream.
Red Trail Stream Crossing
Sediments and rocks on the stream bottom provides habitat for a variety of Crayfish and Macro-invertebrates. Marco-invertebrates lack backbones and can be seen without the aid of a microscope. Certain macro-invertebrates such as Caddisflies are pollutant intolerant. Presence of pollutant intolerant macro-invertebrates are one way to indicate the health of a stream. Macro- invertebrates eat many different things depending on the species-there are predators, scavengers, and herbivores among them. In turn, macro-invertebrates are a source of food for various turtles, fish and frogs.
Marker #14 The Wet Meadow
Continuing on the red trail leads to Marker #14 which discusses“The Wet Meadow”. The Wet Meadow is a man-made habitat created by a power-line cut and is home to field mice, star-nosed moles and various hawks & owls among others.
Marker #15 American Beech
Marker #15 leads to an American Beech Tree. The smooth gray bark of the American Beech Tree usually invites individuals to carve their names and other messages into the trunks. Carving in a tree trunk is similar to a cut on your finger. However, unlike your injured finger, a tree cannot put a band-aid on its wound. The carved bark is an open door for disease.
Beechdrops, seen here in this picture, lack both leaves and chlorophyll and is a parasitic plant of the American Beech Tree.
#16 The Swamp
Marker #16 The Swamp
The final marker on the red trail briefly discusses the importance of the Great Swamp. The land comprising the Great Swamp is a mix of meadows, upland woods, marsh and brush covered swamps. Only 40% of the Great Swamp is wet either part of the year or all year long whereas 60% of the Great Swamp consists of upland forest & meadows.
Red Trail End
We are now at the end of the Red Trail.
Green Trail Blaze
At the end of the red trail head north to catch the beginning of the short .20 of a mile Green Trail near the parking area. The Green trail traverses in a short loop in an upland portion of the GSOEC.