The Matanuska-Susitna Valley, known for its stunning glaciers, mountain ranges, salmon streams, and boreal forests, is a hub for Alaska's outdoor enthusiasts. This vast wilderness stretches from the Alaska Mountain Range in the north to the Talkeetna and Chugach ranges in the east and south.

The Palmer District Probation Office supervises this region, extending north to Cantwell, east to Mentasta, and south to Valdez and Cordova. Additionally, it oversees the remote areas of Unalaska, Dutch Harbor, Cook Inlet, and the Aleutian Island chains. While Valdez, 250 road miles from Palmer, is accessible by air or vehicle, Cordova is only reachable by air or ferry.

Palmer Pretrial Enforcement offers pretrial monitoring services for the courts, covering the same extensive area. This includes supervision in the Matanuska-Susitna Valley, with responsibilities extending north to Cantwell, east to Mentasta, and south to Valdez, Dillingham, and Cordova. While much of the region is accessible by vehicle, Valdez, the home port of the TransAlaska Pipeline, can be reached by air or a long drive from Palmer. Cordova remains landlocked, accessible solely by air or ferry, underscoring the unique logistical challenges of this remote area.