Eastern Utah and Western Colorado Tornado Archive
Date: March 20, 1898
Time: ?
F0 (unofficially)
Location: Near Leadville
INFO: "During a tornado in Lake County, a mustang pony was swept up, carried a distance of 500 yards, and hoisted 20 feet into the air before landing unhurt."
Credit: Blue Ayanami/Tornado Archive
Date: September 18, 1888
Time: ?
Location: Aspen
INFO: TBD
Credit: The Aspen Daily Chronicle/Colorado Historic Newspapers Collection


Date: May 31st, 1912
Time: Afternoon
Location: Grand Junction CO
INFO: Although not a tornado, as mentioned on the Mesa County Library website, this was still a impactful event. A strong wind caused a piece of the former YMCA (now the Alpine Bank) to collapse onto Alfred Gallupe, with him eventually succumbing to his injuries.

Date: April 2?, 1930
Time: Afternoon
Location: Paonia, Colorado (or outside)
Information:

Date: June , 1910
Time: ?
Location: Lake City
INFO:
Credit: The Lake City Phonograph/Colorado Historic Newspapers Collection

Date: May 6th, 1921
Time: Afternoon/Evening
Location: Durango
Information:
Date: 1930
Time: ???
Location: Durango
INFO: Postcard shows a funnel cloud/tornado near Durango
Credit: Center of Southwest Studies
Date: TBD
Time:
Location:
INFO: TBD