Matthew Kalange was last seen on August 16, 2021 in Ovando, Montana. He ran out of gas heading east on Highway 200, at mile marker 53, near Ovando, Montana. He left a note in his car saying he had run out of gas and asking that the car not be towed. He possibly walked to Ovando, Lincoln, or Helmville for gas. He did not have his wallet or cell phone with him at the time and he has not been heard from since. He is described as having brown hair and blue eyes.