You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
alternatehistory.com
Mexico in 1848 had 6 territories, and the United States took the three that were contiguous with its territory:Neuvo Mexico, Alta and Baja Calilfornia. (it certainly wouldn't have gotten Aguascalientes, Tlaxcala or Colima which were basically surrounded by Mexican States). But Baja never was viewed as part of "expected" Manifest Destiny which almost exactly matched lands due west of what the United States owned at the Meridian of New Orleans...
Is there anyway that America can lose one of its three legs?