PUEBLO, Colo. -

More than a year after she disappeared, police say the search for a missing Denver woman who was last known to be in Pueblo continues.

Pueblo Police detectives used search dogs from the Jefferson County Sheriff's Office and the Elbert County Sheriff's Office to search a field west of Pueblo recently.

The search did not yield any new clues.

Kelsie Schelling, 21, was pregnant. She was last seen in Pueblo on February 4, 2013.

If you know what happened to Kelsie, you're asked to call Pueblo Police at 719-553-2502 or Crime Stoppers at 719-542-STOP (7867).

You can also submit a tip by clicking here.