HELP!!- Bedding in my run.

I've been researching for the past couple days now on what the bedding (or "ground material") should be for my chickens. I've read about bare ground (just dirt), hay/ straw, large wood chips, deep bedding practices, sand, and I'm sure there are many more options out there. I'm about to be a first time owner of Rhode Island Reds-my first chickens ever- and I truly have no idea what the bedding should be (in the coop as well as the run.)!! Please help, it's much appreciated! (P.S. --- I Iive in central Massachusetts.)

 

Hey guys, I'm all set now, I asked Andy Schneider (The Chicken Whisperer) ,during his daily radio show, what I should use and he gave great advice! -Till the land deep - 1/4 to 1/2 inch of lime(careful can burn their feet) -and a good 4-6 inches of large wood chips (oak or pine preferably). This set-up only gets cleaned out three times a year!! Thanks so much to Andy on this one.