I was able to visit Chickering Bog near Montpelier, VT in July. Great place! Tricky to get to, directions are http://www.nature.org/wherewework/no...es/art434.html.
Its about 1 mile in to the bog itself. You would never know it though. The hike starts up a hill and is somewhat meandering, but scenic when it passes through some wet areas. Here's the start:
When we finally made it to the bog, it was quite beautiful. Technically, its a fen, but c'est la vie. The boardwalk juts out about 50 feet into the bog:
There are plenty of S. Purpurea Purpureas around. Here's one rosette:
And an all green form:
And finally a closeup of D. Rotundifolia: