Simonson Brook (New Jersey)

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Simonson Brook
A stream crossing a road
Simonson Brook crossing Canal Road, near its mouth at the Millstone River
Simonson Brook.JPG
Map of Simonson Brook
CountryUnited States
Physical characteristics
 - coordinates40°24′58″N 74°35′29″W / 40.41611°N 74.59139°W / 40.41611; -74.59139
 - coordinates
40°26′21″N 74°37′3″W / 40.43917°N 74.61750°W / 40.43917; -74.61750Coordinates: 40°26′21″N 74°37′3″W / 40.43917°N 74.61750°W / 40.43917; -74.61750
 - elevation
36 ft (11 m)
Basin features
ProgressionMillstone River, Raritan River, Atlantic Ocean

Simonson Brook, also known as Sunonson Brook,[1] is a tributary of the Millstone River in southern Franklin Park, Somerset County, New Jersey in the United States.


Simonson Brook starts at 40°24′58″N 74°35′29″W / 40.41611°N 74.59139°W / 40.41611; -74.59139,[1] in southwestern Franklin Park near Route 27. It has several tributaries draining the area near Route 27. It runs through two housing developments then runs into the woods and flows near Bunker Hill Road, passing through the Bunker Hill Environmental Center and the Griggstown Native Grassland Preserve. It then crosses Canal Road and drains into the Millstone River at 40°26′21″N 74°37′3″W / 40.43917°N 74.61750°W / 40.43917; -74.61750.[1]

Simonson Brook is smaller than its fellow brooks, the Ten Mile Run and the Six Mile Run. Many of its stream beds are dry in summer.


Simonson Brook can be accessed by trails in the Griggstown Native Grassland Preserve, part of the Ten Mile Run Greenway. It also crosses several roads, such as Barbieri Court and Ridings Parkway. It is easily accessible at Canal Road.

Animal life[edit]

Simonson Brook has several slow spots which are home to frogs. It is characterized by deep pools in some tributaries which hold many fish.


This stream is very rocky near its mouth, with broken slate covering the streambed. Occasional deep pools exist on the streambed. It is fed by periodic springs, making it dry up very easily when it is not raining. Fish have a difficult time living in the stream because it dries up often.

Sister tributaries[edit]


See also[edit]


  1. ^ a b c "USGS GNIS - Simonson Brook". USGS. Retrieved 18 June 2010.

External links[edit]