Morgan Markers – What Exactly is “Morgan 2”?
OK, by reading the March 21, 2010 postings about the NJ / NY boundary you learned about a survey point called “Morgan 2” but didn’t really get any specifics about what it actually was or looked like, only what it was used for by the NY/NJ Boundary Commission. Worse yet, if you go to the physical location just south of the dock ruins in the Morgan section of The Raritan Bay Waterfront Park (same place NBC filmed part of an episode of “Mercy” – see the March 7, 2010 posting), where “Morgan 2” shows on old charts, you will find no remains of “Morgan 2”.
So what gives?
From what I have been able to piece together from the National Geodetic Survey (NGS) web site, in 1926 a point, believed to be “Morgan 2”, was “a 1/2 inch copper bolt embedded in a mass of concrete about 3 feet in diameter”. This bolt was “flush with the surface of a concrete-filled 8-inch tile set in a 3-foot concrete mass, the whole projecting 1 inch above ground. There is a 1/2 by 2-inch face of iron embedded flush with the concrete within the tile just east of the center.” I wonder if this is what was there in 1886 during the Raritan Bay survey (see November 30, 2009 posting) or 1887 when the Boundary Commission was hard at work?
The National Geodetic Survey is now part of the US Department of Commerce, National Oceanic and Atmospheric Administration and was formerly known as the United States Coast and Geodetic Survey (USC and GS). “Morgan 2” is officially known to Geocaching hobbyists and the NGS as Permanent Identifier (PID) “KV5337”.
The NGS data has a lot of technical info about KV5337 as well as some historical info. The contents of this record, which is called a datasheet, is available from the NGS website. Click here to view the NGS website contents for KC5337, “Morgan 2”. You will note that the first occurrence of historical information in this record starts in 1926 though we know, per the 1886 USC and GS Survey of Raritan Bay and the 1887 NY/NJ Boundary Commission Report, that this “Triangulation Point” had already been identified (or defined) by the U.S. Coast and Geodetic Survey by that time. Interestingly enough, the USC and GS didn’t seem to realize in 1926 that “Morgan 2” was their own invention!
The 1926 entry gives a description of its location as a “small plot of high ground between the railroad tracks and the water.” The 1931 entry is confusing in that it indicates it is located “on a prominent lone knoll (25 feet high) just N of the Central Railroad of New Jersey tracks and 23 meters inshore of high-water line.” As I read it, this 1931 location description is contrary to the 1926 location description. The 1937 entry seems to correspond to the 1931 entry, “This station is on a knoll about 20 feet in height” but also adds that the “disk has been removed.” By 1955, the “Station was reported as having been destroyed by wave action from Raritan Bay.”
Twenty foot waves? That is pretty unlikely except for those reoccurring nightmares I still have. Will they ever stop?
You’ll note the three images in this posting all show Morgan 2 though from three different charts. On the chart from the 1886 Survey of Raritan Bay are three survey points from Morgan: “Morgan”, “Morgan 2” and “Morgan 3”. This helps us understand why “Morgan 2” is called “Morgan 2” – it is because there is more than one! Currently I have no other info about “Morgan 3” though it also appears to be on the shoreline of the bay. I am wondering if the one called “Morgan” is the current survey mark which is on Cliff Avenue and plan on doing some more research on this. My Morgan neighbor Al promised to nab a photo of the survey mark on Cliff Avenue “once the snow clears” that we’ll post here. Hope that snow clears some time soon!
Here are some additional notes and sources of information about this topic. WARNING – some techno-babble and governmental bureau-speak follows:
- “Morgan 2”, a.k.a., KV5337 is located at: N402811.45306 and W0741556.90267.
- Part of the mission of the National Geodetic Survey, is to provide the public with survey control information, such as Latitude, Longitude, Height and Gravity data. This is done for publishable stations in the form of Datasheets.
- A Datasheet is sometimes referred to as Digital Survey Data (DSDATA). It is an ASCII text file which contains data for a survey control station maintained by NGS.
- Note that the each DSDATA record is 80 characters wide. This is undoubtedly due to the data having previously been stored on 80 column “Hollerith” cards like those manufactured and used on IBM equipment since the 1890 census. Note that I spent one college summer driving a fork lift on the night shift in an IBM factory in Dayton/Monmouth Junction, NJ which manufactured these cards. Wonder if these types of cards are still being made?
- Click here to read an overview from NGS of how to read Digital Survey Data.
- Click here to read all about the Input Formats and Specifications of the National Geodetic Survey’s Data Base via their “Bluebook”
- KV5337 (“Morgan 2”) is also called a “Benchmark” or a “Horizontal Control Station”. Click here to learn a ton of stuff about Geocaching including all about benchmarks and data sheets.
- Click here for further information about the U.S. National Grid System.
- Click here if you want to read information on specialized maps called United States National Grid (USNG) Spatial Addresses
- Click here to download a document which further explains the U. S. National Grid.












