I am trying to add a projection for a shapefile with no GCS or Proj. I used Define Projection (I picked GCS_North_American_1983_CSRS) first, followed by Project (NAD_!983_CSRS_UTM_Zone20N). This matches my other shapefiles projections and data frame as

Question

I am trying to add a projection for a shapefile with no GCS or Proj.  I used Define Projection (I picked GCS_North_American_1983_CSRS) first, followed by Project (NAD_1983_CSRS_UTM_Zone_20N).  This matches my other shapefiles projections and data frame as well.  My result shapefile is nowhere near the rest of my data.  Could I be missing something very simple here?

ReginaldLawrence · Answer

Already been solved as stated above!  Corrupt shapefile.  Thanks though!

MelitaKennedy · Answer

I see "St. Croix" in the data's path. Is this the Caribbean island or some other St. Croix. What I'm really asking is--what location does this data represent? With that information, we may be able to narrow down the possible projected coordinate reference systems.

Melita

DanPatterson_Retired · Answer

NAD 83 is a datum, not a coordinate system.  you can have a geographic coordinate system with a nad83 datum, and you can have projected coordinate systems that have a nad83 datum... it is the coordinate system (aka, decimal degrees or meters/feet) that is the key.  It the coordinates fall with the range expected for longitude/latitude then you have a geographic coordinate system with a NAD83 datum.  If not, then it is a projected coordinate system with a nad83 datum.. Unfortunately, there are loads of projected coordinate systems with that datum.