The Columbia brand name is now owned by MTD.
There are current Columbia snowblowers being made..looks like they might be Canada only models right now..They are the same as any other MTD.
The Columbia brand name on these snowblowers is derived from, and descended from, the Columbia bicycles of the 1880's and 1890's! Through a series of corporate buyouts and changes in company ownership, MTD ended up with the name:
https://en.wikipedia.org/wiki/Pope_Manufacturing_Company
Why they use the name now for snowblowers is a mystery..probably just because the own it, and it sounds good!

strange how these things happen..
Scot