Conversion shapefile's coord system from: GCS_Assumed_Geographic_1 to WGS '84

I have my shapefile in arcmap 10.8.1 with this coordinate system: Geographic Coordinate System: GCS_Assumed_Geographic_1 Datum: D_North_American_1927 Prime Meridian: Greenwich Angular Unit: Degree

I want to convert in in WGS 84 but i failed. Any help?

I opened one blanck map, from view i set WGS 84, i uploaded a basemap, and them from Define projection, i set the ccord system to WGS 84, but it did not load correctly,

Any idea?

Ps* maybe it is ESRI,104000?

Hi @DimitrisK
For this map re-projection task I suggest the proj4 package from CRAN.

Hi, you could read it in with the sf package then transform it with st_trasnform(4326), which is the EPSG for WGS84.

Transform or convert coordinates of simple feature — st_transform • sf (

This topic was automatically closed 42 days after the last reply. New replies are no longer allowed.

If you have a query related to it or one of the replies, start a new topic and refer back with a link.