Green Mountain Club issued the following announcement on March 22.
As you may have noticed, it's a squishy, muddy mess out there. Please abide by mud season guidance now through mid-May at least (we'll keep you posted as trails dry out). Hiking on saturated trails causes compaction, erosion, and damage. Stick to low elevations and durable surfaces. Check out this cheat sheet and our mud season guide for more details. Thank you for helping to protect Vermont's trails!
https://www.greenmountainclub.org/hiking/mud-season/
Original source can be found here.