The Matanuska-Susitna Valley is home to enormous glaciers, expansive mountain ranges, salmon-filled streams, and lake-filled boreal forests. It is known for being a playground to the heartiest of Alaska's outdoor enthusiasts. The Matanuska-Susitna Valley encompasses a vast wilderness area spanning from the Alaska Mountain Range in the north to the Talkeetna and Chugach ranges in the east and south. The Palmer District Probation Office is responsible for the supervision of the Matanuska-Susitna Valley extending as far North as Cantwell, East to Mentasta, and South to the communities of Valdez and Cordova. Additionally, the Palmer officer supervises Unalaska, Dutch Harbor, and the rural communities of Cook Inlet and the Aleutian Island chains. While Valdez, 250 road miles from Palmer, is accessible by air or vehicle, the landlocked community of Cordova can only be accessed via air or ferry from Valdez or Whittier.