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Snowy Egret standing on grassy island surrounded by water
Snowy Egret @ Clare Carvel

Salt Marsh Science Project Marsh Sediment Results & Data

With the help of high school and middle school students, Mass Audubon’s Salt Marsh Science Project is able to measure the vertical sediment deposition (gradual pile up of additional layers of sediment) on salt marshes across the North Shore using marker horizons. After one year or more, we go back and measure the amount of sediment accumulated on top of the marker.


With the help of participating students, we have been collecting data on salt marsh sediment accumulation as it relates to coastal Massachusetts since 2013. Please note that not all sites are monitored each year—the date range indicates the start date and the most recent year data was collected. 

→ You can also download the full data set as an Excel file, and then use the bottom tabs in the Excel file to look at each site.

download Marsh Sediment - Full Data Set (434.5 kB)
LocationYearsMonitored ByNotesMapKMZ File*
Danvers, MA, Mass General2014-2017Holten Richmond Middle SchoolRestrictedDanvers Map
download danv (951 B)
Essex, MA, Conomo Point2017Museum Institute for Teaching ScienceRestored, ReferenceEssex Map
download esse (816 B)
Gloucester, MA, Eastern Point2013-2017O'Maley Innovation Middle School; Essex North Shore Agricultural & Technical SchoolRestoredEastern Point Map
download glouEast (858 B)
Gloucester, MA, Mill River2014-2016Endicott CollegeRestoredMill River Map
download glouMill (777 B)
Ipswich, MA, Cedar Point2014-2017Endicott CollegeReference, RestoredCedar Point Map
download ipswCeda (768 B)
Ipswich, MA, Little Neck Road2014-2017Ipswich High SchoolReference, RestoredLittle Neck Map
download ipswLitt (800 B)
Ipswich, MA, Town Farm Road2014-2017Ipswich High SchoolReference, RestoredTown Farm Map
download ipswTown (961 B)
Newburyport, MA, Joppa Flats2013-2017Endicott CollegeReferenceJoppa Flats Map
download newbJopp (908 B)
Newburyport, MA, Parker River NWR2013-2016Endicott CollegeReference, RestrictedParker River Map
download newbPark (707 B)
Rockport, MA, Seaview St.2014-2017Rockport Middle SchoolRestored 2, Restored 1Rockport Map
download rock (792 B)
Rowley, MA, Railroad Ave.2013-2017Endicott CollegeReferenceRowley Map
download rowl (809 B)
Salem, MA, Forest River2013-2019Endicott College, Saltonstall SchoolRestrictedSalem Map
download sale (840 B)
Salisbury, MA, Railroad Bed2013-2015Endicott CollegeReferenceSalisbury Map
download sali (845 B)

*Google Earth is required to open and view this type of file

Analysis Resources

Get Involved

If you'd like to collect data in your community, contact us.