Coordinate system issues/projection issues

[ZacharyPierce]

I have one shapefile which is GCS WGS_1984.

I then have a .dwg file that has no spatial reference. I exported the polyline file to a shapefile and it still has no spatial reference. I  project to align the same as the other shapefile but I am getting a problem.

The original has extents of -102.0 and -87.00 dd  and the new one is  like 6940520 ft.

I keep starting over and making them all the same and not getting them to align.

Please help.

[ZacharyPierce]

When I add the original file... I get this warning message:


"Warning, inconsistent extent!

One or more of the added layers has an extent that is not consistent with the associated spatial reference information.

Re-Projection the data in such a layer may lead to unexpected behavior. Use Arc Catalog to confirm the spatial reference is correct and adjust if necessary.

[PeterStratton]

Where did your dwg come from?  If it came from CADD, are you sure it was created using a geographic coordinate system?  Quite often they are created in local coordinate systems that have no relationship to the real world apart from the unit of measurement.