What are the fruits can you find in an orchard

For my geography assignment, I need to pretend i'm running a farm by first choosing a type of farm and then say what products it produces, and then make a brochure about it (if that makes sense). So (as you can see) I chose an orchard farm, and I was wondering what fruits grow in similar climates that you wold find in an orchard? I've been on Wikipedia (http://en.wikipedia.org/wiki/Orchard#Crops) but that doesn't really tell me what climates the fruits have to be in (eg. Chestnuts need really cold/freezing climate while something like peaches just need lots of rain. they're both in the temperate areas but they're grown in different climates.)

So please suggest me a group of fruits (no more than three) that grow well/easily together that you would usually find in an orchard. (and are the crops on the Wikipedia page the only crops you can find in an orchard??)
Thank you for taking your time reading (:

apples, pears, apricots, plums, cherries, were all in our orchard in Iowa when I was a kid. so they should all work for an orchard farm