topic Layer with same coordinate system not align correctly in Data Management Questions https://community.esri.com/t5/data-management-questions/layer-with-same-coordinate-system-not-align/m-p/74982#M4343 <HTML><HEAD></HEAD><BODY><P>I have two shape files of watershed. I define projection to be WGS1984Zone47N. However, Two layers would not be aligned as shown in attachment. How do I solve this problem? Thank you in advance.</P></BODY></HTML> Sun, 27 Mar 2016 03:39:53 GMT SathapornMonjung 2016-03-27T03:39:53Z Layer with same coordinate system not align correctly https://community.esri.com/t5/data-management-questions/layer-with-same-coordinate-system-not-align/m-p/74982#M4343 <HTML><HEAD></HEAD><BODY><P>I have two shape files of watershed. I define projection to be WGS1984Zone47N. However, Two layers would not be aligned as shown in attachment. How do I solve this problem? Thank you in advance.</P></BODY></HTML> Sun, 27 Mar 2016 03:39:53 GMT https://community.esri.com/t5/data-management-questions/layer-with-same-coordinate-system-not-align/m-p/74982#M4343 SathapornMonjung 2016-03-27T03:39:53Z Re: Layer with same coordinate system not align correctly https://community.esri.com/t5/data-management-questions/layer-with-same-coordinate-system-not-align/m-p/74983#M4344 <HTML><HEAD></HEAD><BODY><P>You don't Define a projection unless the projection is unknown.&nbsp; Then if it is unknown... you have to define it to the projection that it is... NOT the one you want.&nbsp; So first, you have to define it correctly, then, you use the Project tool to project it into the coordinate system you want.&nbsp; In your case, you defined it as something that it isn't, so define it properly, then project it.</P></BODY></HTML> Sun, 27 Mar 2016 13:57:40 GMT https://community.esri.com/t5/data-management-questions/layer-with-same-coordinate-system-not-align/m-p/74983#M4344 DanPatterson_Retired 2016-03-27T13:57:40Z