which location does this file exist

Can someone help me with this plz..
can someone tell me the location in this if statement is where?I mean what can be the location where can I find the location of this file?
 if (File.Exists(Server.MapPath("~/Elina/" + url + ".ascx")))
                    {
                        ElinaUserControl elinaPage = LoadControl("~/Elina/" + url + ".ascx") as ElinaUserControl;
                        MasterPageFile = elinaPage.MasterPage;
                    & ...