Some good places to hike in mud season in the manchester area while giving the higher elevation trails time to defrost and be less fragile:
Trails in Equinox Preservation Trust in Manchester
West River Trail from Jamaica to South Londonderry
Bald Mountain in Townsend State Park
Harriman Trail in Wilmington and Whitingham along the shore of the Harriman Reservoir
If you know of other good mud season trails email me at <email@example.com> and I will post them on this website.