Once you cross the Pequannock River, I would suppose technically one would be in Riverdale, NJ but this park isn't easily accessible from any public access point in Riverdale, NJ and as a consequence it is routinely considered to be in Bloomingdale, the Borough of Bloomingdale is even maintaining it, so I would image there may have been some agreement between Bloomingdale/Riverdale and Passaic/Morris Counties.
Here looking at the Pequannock River flowing downstream towards the picture taker:
Looking from the bridge crossing the Pequannock River in the Park out at the road and the stone wall lining the river.
Here a picture of the river flowing downstream away from the picture taker
On the sidewalk on Hamburg Turnpike (Main Street in Bloomingdale), is a nice war memorial to Bloomingdale's War Veterans. These three are for Korea and the Vietnam War
A large 'Hands Off' is engraved into the statue and its unclear if this is an admonition to the viewing public or if its somehow related to the World War I veterans being honored here warning the enemy to keep their 'hands off' - ostensibly their flag? Built prior to WWII, WWI was then known simply as the 'World War'
A monument to those who served in WWII. An interesting addition to the statue is the machine gun, stripped of its working parts and mostly rusting out. It appears to be a kind of WWI model, but in the beginning of the conflict, the US Army, particularly in the Phillipines was not particularly well armed. Perhaps the machine gun was surplus National Guard material?
And here is the piece de resistance of the Memorial, the memorial to all war veterans, displaying what appears to be a WWI artillery piece.
Looking it up the above artillery piece appears to be a British 60lb Mk1. According to the wikipedia entry on it the United States acquired several for evaluation in 1920. The markings on the weapon are a little ambiguous but it would seem that the gun was manufactured in October 1918, perhaps it never even saw action. By 1932, when the memorial was built, this artillery piece was probably in the surplus pile and the Borough of Bloomingdale was probably more than happy to acquire such a large piece for its memorial.