I see a couple issues here...
On the firearms issue it depends largely what "hit the fan" senario is but a national or state park would be the LAST place on earth I'd want to go under most long term situations. Every "halfway a survival nut" headcase out there is also going to "head for them thar hills" and in a protracted situation after their week of food runs out...well let's just say people cease to be people when they haven't eaten for over several days. Add to that they all will have their "survival arsenal" that they carried with minamal food and no pre-positioned supplies. They will be some of the worst places one could head at least early on until they all finish eating each other and starving out.
1)Living off the land is a romantic notion but a very bad plan...it's what happens when all
good plans fail or go horribly wrong.
2)You can't secure yourself out in the open even with a handful of friends or family or super mall ninja commandos.
3)You can't carry enough even with heavy vehicles to hunker down long term.
4) Short term unless you live in the city (and possibly even then) you are likely better off staying where you are with food and supplies and the possabillity of support and medical care in most situations you'd likely face. (Everybody wants to be Jeremia Johnson until they're hungry and freezing)
Now with all the above firm possitions and disclaimers in place -LOL onto the fun part (gun stuff)
You need at least one fiream capable of a few fast shots out to intermediate ranges for everything from self deffense to hunting....there are a LOT of choices here but assuming it's not "mad max beyond thunderdome" out there on non-private property and in a fuzzy at best senario I'd say the humble .30-30 lever action with about 5-6 boxes of shells (packaging discarded) To 200 yards you can certainly hunt anything with it you'd need to and up close it can be pretty quick and handy. I'd preffer a trapper carbine version if I could get one or an excellent marlin 336 would be fine as well....prefferably with a good rugged peep sight and a larger aperature installed (like XS sights ect) It certainly has already proven itself in both deffensive and law enforcment circles already...it may not be as cool as a "quasi-assault weapon" but that has upsides to...and let us remember the lever action was the original "anti-assault rifle" It won't weigh you down too bad and it has the baseline capabillities without looking like a rambo wannabee yahoo and carries well.
An extremely accurate and reliable .22 pistol. Most likely a semi auto magazine fed one like the Ruger mkII/III, browning buckmark, S&W41 ect with a good field holster and some way to cary a couple spare mags. An assortment of both HV HP ammo and solids. (and if you have a can the apropriate sub-sonic ammo if choice that it works best with...but most of us won't have that option) Should the long gun best lost or run dry of ammo the solids still allow larger game with care. It offers some deffensive use....will be adequate for up close hunting and scavenging needs. You can carry a lot of ammo no problem (probably about 400-600 rounds total of assorted types most being quality HV HP)
An assortment of snares and components and a couple connibears (110's and maybe a 220 or two (but probably just the 110's for me) a small gill net and fishing kit.
This assumes you've been shown and already learned how to use traps effectively (checkout buckshots camp...he's a good guy and has some good setups you could start with and some good material...I was fortunate enough to camp with him once and learn firsthand how the things in his kit can work for you) Remember you spend more energu hunting than you get most of the time....but traps hunt for you while you do other important things to better your situation. Guns are the least productive tool for food production MOST of the time. But a little knowledge and the right snare and trap assortment (assuming all bets are off and it's truly a survival situation where the preservation of human life justifys any possible game laws being ignored....because short of that none of the above are likely legal and all will net you huge fines and possible jail time. Just some thoughts along these lines...hope they enrich the discussion a bit.
There are many senarios where I'd choose different firearms. Possibly reversing the .22 to a longun and a large caliber sidearm in some of them...the above would fit many somewhate remote to way in the back country longer than a week away from town on foot type senarios I could think of...as could I'm sure many other combos. I always like the carbine and sidearm that share ammo replies...but in reality if I'm going to carry a long gun I want it to have long gun capabillities. I love these kinda threads though...they are always fun.
PS- If you know where you are going why not cache food and medical supplies ect in the area ahead of time? And if you are willing to concead it's not the best place to go why not concentrate more on finding a lease or rental property near the area until you can purchase some land you can "escape to" if times get hard (or you just get tired of living in town when you retire down the road) plus everyone neds somewhere to hunt camp and fish and public lands dwindle more each year. Realistate is always a good investment...just like good firearms!
