The Appalachian Trail Conservancy (or ATC) believes the of the trail in Maine are particularly difficult. The western section includes a mile-long (1.6 km) stretch of boulders at Mahoosuc Notch, often called the trail's hardest mile. The central Maine section crosses the Kennebec River at a point where it is wide, the widest unbridged stream along the trail. The last and most isolated portion in the state (and arguably on the entire trail) is known as the Hundred-Mile Wilderness. This section heads east-northeast from the town of Monson and ends outside Baxter State Park just south of Abol Bridge. More moose are seen by hikers in this state than any other on the trail. The northern terminus of the Appalachian Trail is on Katahdin's Baxter Peak in Baxter State Park.