The Whitehorse Trailer is a home in Scottsdale, Arizona that is home to brothers Dan and Ethan Whitehorse.
- Several important events have taken place at the Mercer House:
- Dan discovered Sutton's laptop in Ethan's jeep.
- Both Sutton and Emma have hidden out at the trailer.
- Thayer presented Ethan, Emma and Sutton with video proof that Annie Hobbs had saved Sutton and brought her to the Range Creek Motel.
- Dan, Theresa, Thayer, Emma (as Sutton), and Mads collaborated over Ethan's trial.
- Dan kicks Ethan out of the trailor (but that later changes when Ethan has a change of heart).
- After loosing Theresa, Dan burns a pile of picnic tables here.