[MichaelJ]

Well, any spot around water won't be secluded, so you'll have to do a little balancing.

I think one nice option, now that bug season is pretty much done with, is to head in the Wild River Trail to Perkins Notch. There's an established tentsite there, out behind the lean-to, but there are also open woods towards the "true" notch near the Rainbow Trail junction. From there, you can day hike a great loop up the Rainbow Trail and down the Black Angel Trail, having summited the Dome and Mt. Hight. Or, you could backpack it up either of those or the beautiful Moriah Brook Trail and then up up South & Middle Carter, where if you bring all your own water with you, you can camp off in the open woods along the ridge (watch out, though, for places where moose sleep; they get cranky if you take their bed).

Another wonderful option is to go in from the Berlin fish hatchery up the Mill Brook Trail and camp at a secluded wilderness campsite there, or up on Rogers Ledge (visit anyway). Next day head south past Kilback Pond to Unknown Pond and try to grab a pond-side campsite there (definitely *not* secluded but gorgeous). Visit the Horn's 360° views and even tag Cabot as a 4K summit. Then head out the Unknown Pond Trail back to the hatchery the next day.

Hmm ... you want 4 days, not 3. You could also just head into the Pemi wilderness and see what you can find. Take the easy route in from the Zealand Trail and up past the Zeacliff lookout on the Twinway and find a spot to tent near Zealand Pond. Next day over the Bonds and down to the Wilderness Trail, head out into the Pemi to find a place to camp. Third day back north in the Pemi towards Zealand Notch and spend this easy day lounging around at Thoreau Falls. Camp up in the notch way down low off the trail.

And if you don't mind being completely UNsecluded, the #1 option is to do the Pemi loop. First day is short - from Lincoln Woods up Osseo over Flume and Liberty to Liberty Springs. Next day over the rest of Franconia Ridge to Garfield tentsite. Next day all the way to Guyot and hope for a tent platform or at worst end up in overflow. Last day over the Bonds and back out the Wilderness Trail.

TB - Guyot and F. Ridge will just be busy and highly populated. Get to Guyot early if you want a site. Be patient in the tight spots on F. Ridge where many others will be.