Park

Marlborough-Sudbury State Forest Marlborough park

Massachusetts, USA Merrimack watershed 42.356°, -71.514°
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Marlborough-Sudbury State Forest Marlborough -- Massachusetts park
Marlborough-Sudbury State Forest Marlborough Massachusetts · Merrimack watershed
About this park

Marlborough-Sudbury State Forest Marlborough

Marlborough-Sudbury State Forest, located in Marlborough, Massachusetts, is a beautiful and diverse forest that offers visitors a range of outdoor activities and natural attractions. The forest covers over 4,200 acres and includes a mix of forests, meadows, wetlands, and ponds.

One of the main reasons to visit the Marlborough-Sudbury State Forest is for its hiking trails. The forest has over 14 miles of marked trails, including the Bay Circuit Trail which passes through the forest. Visitors can also enjoy fishing, boating, and swimming in the forest's ponds.

Specific points of interest within the forest include the Cowassock Woods, a mature forest with a diverse range of tree species, and the Pine Hill area, which offers scenic views of the surrounding landscape. The Hop Brook Marsh is also worth visiting for its wetland ecosystem and birdwatching opportunities.

Interesting facts about the Marlborough-Sudbury State Forest include that it was once used as a training ground for the Massachusetts National Guard and that the forest contains a number of historical sites, including the ruins of an old mill and a colonial-era cemetery.

The best time of year to visit the Marlborough-Sudbury State Forest depends on the activity you want to pursue. Spring and summer are ideal for hiking and water activities, while fall offers stunning foliage views and great birdwatching opportunities. Winter is also a great time to visit for snowshoeing and cross-country skiing.
StateMassachusetts
WatershedMerrimack
Latitude42.3563°
Longitude-71.5137°
Land designation

Park & land designation reference

A quick legend for the federal and state land categories Snoflo tracks. Each designation comes with different rules around access, recreation, and resource extraction.

National Park
Large protected natural areas managed by the federal government to preserve significant landscapes, ecosystems, and cultural resources; recreation is allowed but conservation is the priority.
State Park
Public natural or recreational areas managed by a state government, typically smaller than national parks and focused on regional natural features, recreation, and education.
Local Park
Community-level parks managed by cities or counties, emphasizing recreation, playgrounds, sports, and green space close to populated areas.
Wilderness Area
The highest level of land protection in the U.S.; designated areas where nature is left essentially untouched, with no roads, structures, or motorized motorized access permitted.
National Recreation Area
Areas set aside primarily for outdoor recreation (boating, hiking, fishing, often around reservoirs, rivers, or scenic landscapes); may allow more development.
National Conservation Area (BLM)
BLM-managed areas with special ecological, cultural, or scientific value; more protection than typical BLM land but less strict than Wilderness Areas.
State Forest
State-managed forests focused on habitat, watershed, recreation, and sustainable timber harvest.
Bureau of Land Management (BLM) Land
Vast federal lands managed for mixed use -- recreation, grazing, mining, conservation -- with fewer restrictions than national parks or forests.
Detailed forecast

Plan your visit down to the hour

Same weather feed Snoflo's iOS app uses -- updated continuously from NOAA / yr.no.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Stay nearby

Area campgrounds

Snoflo-tracked campgrounds within reach of Marlborough-Sudbury State Forest Marlborough, with reservations status.

Campground Reservations Toilets View
Minha Casa
"The Sandpits" Private Hiking And Winter Sports Area
Grotonwood
Around the spot

Plan a longer trip

The closest parks, lakes, fishing spots, and POIs so a park visit can grow into a full weekend.

Responsible recreation & Leave No Trace

Know before you go
Check the operator's site for hours, permit requirements, seasonal closures, and fire restrictions before heading out.
Stay on trail
Stick to marked paths to protect vegetation, prevent erosion, and avoid disturbing wildlife habitat.
Respect wildlife
Observe from a distance, never feed wildlife, and store food securely if camping is permitted on-site.
Pack it in, pack it out
Carry out all trash, food scraps, and gear. Many parks have limited or no trash service.
Leave what you find
Don't take rocks, plants, or artifacts. They make the park what it is for the next visitor.

Set push alerts in the Snoflo app

Save Marlborough-Sudbury State Forest Marlborough as a favorite, set a custom threshold (precipitation, freezing temperatures, fire-restriction days), and the iOS app will push the moment conditions cross.

FAQ

About Marlborough-Sudbury State Forest Marlborough

What can I do at Marlborough-Sudbury State Forest Marlborough?

Most Snoflo-tracked parks support hiking, picnicking, and wildlife viewing. Check the operator's site for activity-specific rules (camping, fishing, paddling, hunting).

How fresh is the weather data?

The hourly forecast updates throughout the day from NOAA / yr.no. Streamflow comes live from USGS streamgauges.

When is the best time to visit?

Use the 15-day temperature & precipitation outlook on this page to plan -- pick a window with comfortable temperatures and low precipitation.

How do I get to Marlborough-Sudbury State Forest Marlborough?

Tap Directions in the hero above to open driving directions in Google Maps, or Open in map to center the Snoflo interactive map on the park.

Can I get alerts when conditions change?

Yes -- alerts are managed in the Snoflo iOS app. Favorite this park, set a threshold (temperature, precipitation), and you'll get a push the moment it crosses.

More parks

Other parks near here

Snoflo-tracked parks within driving distance of Marlborough-Sudbury State Forest Marlborough.