The Northern Mount St Helens Loop is a 27.7 km looped trail that starts and ends in Washington, Washington. The trail is considered to be difficult to hike and has a total elevation gain of 1805m. Normally the trail takes 2 days to complete but can be finished in as little as 1 day.
The warmest months are June, July, and August and the coldest months are December, January, and February. The wettest months are December, January, and February and the driest months are June, July, and August.