Does the CP own all of Soo Line's railways in Minnesota including their interests other lines such as BNSF? For example Soo line owned a half interest in the BNSF tracks from Cass Lake MN to somewhere near Bemidji is this still true? And CP has now taken on that 1/2 interest ownership?
CP Rail owns the Soo Line in its entirety as of the mid-1990s, but continues to operate it as its midwestern United States subsidiary. In turn, the Soo operates most of the existing ex-Milwaukee Road trackage, minus some smaller segments owned by CN, BNSF, the E&LS and a few others.
I don't know whether the Soo still owns a part interest in the ex-GN line from Bemidji to east of Cass Lake. They at least have and exercise trackage rights from Erskine to Duluth, and from there to Shoreham Yards in Minneapolis. With the possible exception of this line and maybe terminal track near Duluth and Superior (though I think all that is gone too), the Soo has completely abandoned or sold all of their track in northeastern Minnesota.