Massachusetts: Westborough: Crane Swamp Map

Map InfoMap Information

Created By: dbperry
Last Updated: June 9th, 2012 9:06pm
Map Coverage:
North: 42.3246°
West: -71.6188° East: -71.5639°
South: 42.2897°
Country: United States
State: Massachusetts
Price: Free

Topographic Data Street Data Trail Data Garmin Custom Map (kmz Imagery) PC Version Available Mac Version Available Works With Garmin



Crane Swamp, Westborough, MA 01581

Don't let the name fool you. This area is centered on the broad Crane Swamp - headwaters for the Sudbury River - but with over 2,225 acres of open space, there are plenty of hiking trails without having to slosh through the swamp. With parcels in four different towns (Westborough, Southborough, Marlborough, and Northborough (isn't it funny that Southborough is east of Northborough and Westborough is south of Southborough? I digress...)), the open space is under the direction of many different entities, including the Sudbury Valley Trustees. The Crane Swamp area includes Westborough State Hospital (now closed), Walnut Hill, Cedar Hill, and the Sawink Farm. 

Of particular interest is the Walnut Hill (or Carroll) Water Treatment Plant, which treats all of the drinking water for the city of Boston and many Boston suburbs. This treatment plant is located at the northern end of the Crane Swamp. More information on the treatment plant is at these links:
How the MWRA Water System works
A map of the MWRA water system 
Facts about the Walnut Hill Water Treatment Plant


More information about the Crane Swamp area at:


Source Data

My KMZ map is from the Sudbury Valley Trustees map and brochure (with permission):
(See Version History below for more information)

If you enjoy the Sudbury Valley Trustee properties, consider joining the SVT as a member:



This KMZ map is set to Draw Order 32 so it will show 'beneath' your primary map on your Garmin KMZ-compatible GPS.

Note that due to the wide coverage area of this map, it is actually 4 tiles. Keep that in mind when placing this on your Garmin GPSr - even though this is one KMZ, the number of tiles is limited to 100 across all the KMZ files loaded on your GPS.

The image on the left is from a Garmin GPSMAP 78sc with no other maps displayed. The image on the right is from the same device with the Garmin 24K NE series TOPO maps displayed.




I have posted this KMZ as freeware, so instead of paying me for it, send me a note if you found this file helpful!
[email protected]

Download Garmin Custom Map [2MB] (1053 Downloads)


Once you have downloaded and unzipped the KMZ file, you can:

1) Display it on your Garmin GPS receiver by placing the file in the \Garmin\CustomMaps folder on your supported Garmin GPS receiver. For a list of supported devices, click here

2) Display it in Google Earth by opening the file (FILE, OPEN). 



Notification of Updates

If you would like to be notified when I update this or any of my KMZ maps, subscribe to my notification e-mail service by sending an e-mail to [email protected]  with the subject line "subscribe gps_maps"
This is a notification list only, and the only posts you will receive are when my KMZ maps are updated. Your e-mail address will not be used for any other purpose (or provided to anyone else except me). 


Support The Effort

If you find the map and this website useful please consider making a donation to offset hosting costs.


* You don't need paypal to donate but that is who will process the donation.


Version History

Version 1.00 (2012 June 10)
Initial release using Sudbury Valley Trustees map dated March 2012