The upper Rocky Branch parking is definitely plowed. Not sure of Pine Bend Brook trail. The usual recomendation for Pine Bend Brook is park down the road at Sabathday Falls parking lot which is normally plowed (but I can not confirm it is this year.) Appalachia was definitely plowed yesterday and they opened it up quite a bit. 19 Mile Brook is also plowed, as well as Great Gulf and the two Imp trail heads. The only really big add to plowed parking for many years in the whites that I am aware of is the USFS Ammonusuc Ravine lot plowed as an alternative to paying a day use fee to park at the Cog lot. Parking at Seven Dwarfs is of no value as the owner of the land at the end of the road including both sides of the river (including the winter route) had been actively posting their land no Trespassing in past years. The folks who own the bridge do not own the land along the river north of the bridge and were diverting people off their property onto the neighboring posted property. Haystack Road (FR 304) the summer access route is gated but for several years it has been plowed. There is room for a few vehicles but unless its a group and someone blocks someone in, its limited. The no parking at this sign was covered over by the FS one year but it was not last year but given that they presumably plowed it, it is probably a legit place. Garfield lot has also been consistently plowed for at least 10 years since the bridges were washed out and rebuilt.
As recently noted, The Lowes Store parking for Lowes Path is not going to be plowed this winter and parking along the south side of RT2 is not advisable. Bowman up the road was plowed last winter by the resident whose driveway passes through it. Lowes can be accessed by walking south on the rail trail which is groomed for snowmobiles. They go at a high rate of speed (tickets on occasion are written for over 70 MPH) so be careful.
Kearsage North parking in winter is problematical, the North side of the road is in Bartlett. and they actively towed cars on their side of the road in past winters except for those in the actual defined parking spaces. The south side of the road in in North Conway. There are no parking signs along the North Conway side but only in selected spots.