Muddy (Creek) Station (N41 18 12.0 W110 32 23.0)  

Located 12 miles from Fort Bridger and 11 miles from Quaking Aspen Station on north side of Muddy Creek. It was a Home Station.

http://www.expeditionutah.com/featured-trails/pony-express-trail/wyoming-pony-express-stations/ 

Several sources identify Muddy or Muddy Creek as a station, including the 1861 contract.  A French-Canadian and his English wife served as stationkeepers.  Little more is known about the station. 

http://www.nps.gov/parkhistory/online_books/poex/hrs/hrs6a.htm#93