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I have some data in ArcGIS, but unfortunately there isn't projection coordinate, like the picture below:

Fig. a Fig. b

This place is in America and its longitude and latitude is about -75.2° and 40.1°. Can anyone guess its "projection coordinate"?

As suggested by @JGH, the projection coordinate is "Pennsylvania State Plane South (3702)"!It matches perfectly!

Besides this shapefile above (Place 1), there is another file (Place 2, the same place), but they are not overlapped. I was wondering the projection of this shapefile.

Fig. c

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  • If you have another question please ask it as a new question but be sure to search for any earlier Q&A that may already answer it first.
    – PolyGeo ♦
    Commented Nov 5, 2017 at 21:56
  • Thanks. But I suppose my second question is quite related to the first one, so I put them together.
    – T X
    Commented Nov 6, 2017 at 0:55
  • Please take the Tour to learn about our focused Q&A format. Whether questions are related does not influence whether they can be asked in the same question.
    – PolyGeo ♦
    Commented Nov 6, 2017 at 1:16

1 Answer 1

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It looks like Pennsylvania State Plane South (3702)

Using the coordinates you provided, expressed in feet, they are converted to 40.1330528°, -075.1709156°

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  • It works perfectly! I am wondering if you could guess another place's projection? It is the same place as above, but they cannot overlap. As a result, I think the Place 2 is not the "Pennsylvania State Plane South".
    – T X
    Commented Nov 5, 2017 at 14:43
  • @TX please consider accepting the answer then so other know (green check mark to the left).
    – JGH
    Commented Nov 5, 2017 at 16:18
  • I have accepted it. I use this website to calculate some projection(e.g. Pennsylvania State Plane South & North,both in feet and meter), but failed. Could you give me some advice?
    – T X
    Commented Nov 6, 2017 at 0:53

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