I could not explain all the reasons why this happens (though our super helpful poster Bama_ed has explained the (his?) thought process as to why a lesser amount of consecutive nights are available when a longer stretch of those same nights is not)... in any case, IF all the nights you would want to stay are available as single nights, you could go and reserve each of those nights as an individual reservation (the hassle being you will have to give deposit and get a separate reservation number for each of those individual nights). Then, after you have ALL the nights you need together, you get on phone to a CM (there is a certain CM type that seems better able to help at doing this ... can’t recall if it is a Fort CM or the CM’s at a certain reservation number) who can “merge” the reservations into one single reservation/reservation number (therefore a single stay which would alleviate the possibility of having to switch sites each day). Keep in mind that all the reservations would have to be the same level of reservation (is: full hook up, premium meadow, etc... mixed site types would not work and you would have to change sites each time you reserved a different type/level). People who REALLY want to put forth the effort of calling and checking website multiple times daily to string together the days needed GENERALLY seem to have good success at getting the desired dates... also, and someone else may point out the exact time frame of this, as it gets closer to the time that people have to pay up in full do the stay, there tend to be a few more openings as people cancel. I am putting this out there from everything I have gleaned over the past 6 years on this thread. Good Luck!