Palmer Pretrial Enforcement provides service to the court through pretrial monitoring. The Palmer 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, Dillingham and Cordova. A majority of the area is accessible only by vehicle while Valdez, the home port of the TransAlaska Pipeline, is accessible by air or 250 road miles from Palmer. Cordova, a landlocked community, can only be accessed via air or by the ferry from Valdez or Whittier.