Subject: what grain crops will grow at high altitude?

Are there any high protein high carbohydrate grains or any kind of healthy 
grains that would grow at somewhere like 3000 feet up to 5000 feet and 
higher where it gets 76 inches or less annual rain in an equatorial area. 
The only reason it would be less though is if it was above the cloud 
layer. Would it all rot from too much water or suffacate from too little 
air? The soil would be volcanic. Where do I find someone with grain seed if 
there are such a plants?

Re: what grain crops will grow at high altitude?