NILES' WEEKLY REGISTER, Baltimore, March 25, 1837  Page 2 has an interesting & quite involved report headed: "Battle of the Fur Traders With the Indians Near the Rocky Mountains", detailing just that. Page 14 has: "American Colonies In Africa".
Sixteen pages, 8 1/2 by 12 inches, very nice condition.

As noted in Wikipedia, this title: "...(was) one of the most widely-circulated magazines in the United States...Devoted primarily to politics...considered an important source for the history of the period."