I'm glad that Atheist has got his brain in gear tonight!
If you're in the USA, Sonny (as your references to a cabin deep in the woods appears to suggest to me), you need to note that this is a UK-based site and your 'gas' is our 'petrol'. (Here, 'gas', in such a context refers to LPG, butane or similar).
However the type of generator I've linked to would still work, as it's a dual fuel model. (You'd obviously need one that could provide 120V though, instead of the European standard 230V).
Using petrol (= US 'gas') though might present a practical difficulty in transporting sufficient fuel to the site. In the UK the maximum quantity of petrol that one can legally have in a vehicle (other than its own petrol tank, of course) is 20 litres (5.3 US gallons), spread across two 10 litre metal containers. (Plastic containers aren't acceptable for such quantities). The maximum amount of petrol that can stored at home is 30 litres (7.9 US gallons). I suspect that US state laws will impose similar, if not stricter, conditions, which you'd need to be aware of if you were to follow up on your plan to use a generator at the cabin.