The popular Dudley Trail up Maine’s Mount Katahdin will remain closed indefinitely, while a reroute of Katahdin’s Hunt Trail won’t be open in 2019, according to Baxter State Park officials.

The Dudley Trail has been closed since 2016 because of unstable conditions caused by a rock and debris slide.

The strenuous 1.3-mile trail is almost entirely above treeline and climbs nearly 2,000 feet from Chimney Pond to Pamola Peak.

Officials said it is difficult to gauge when it will reopen. They said the terrain is challenging, and crews are working hard to reroute the trail.

Meanwhile, the reroute of the Hunt Trail won’t be open in 2019, and officials said they hope it will be open for 2020. Trail crews are rerouting the trail because the existing trail had become an eroded stream bed due to its steep nature and increased traffic.