LinqToSQL Range variable name can be inferred only from a simple or qualified name with no arguments

I am trying combine two columns (latitude and longitude) into a new coordinate using linqToSQL, but I get the error..

Range variable name can be inferred only from a simple or qualified name with no arguments

Here is my code..

Using dc = New Context(ConnectionString)
                Dim data = From d In dc.Routes Where routeId = routeId Select d.PlaceName, New GeoCoordinate(d.Latitude, d.Longitude)
                Return data.ToList
End Using

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