buying my first piece of land - due diligence

[Eric Kaufman]

My first post, apologies if I missed a sticky somewhere in which much of this is answered. I'm looking at buying a piece of rural property (50 acres). It's been on the market for a year at $85K. I feel comfortable that I could make a 20K down payment no problem, and the mortgage payments wouldn't be too burdensome as I work on the business (the point of the property). 

I owned a condo before, but never a piece of rural land. I was wondering if there are any make-sure-you-check-these-out type of issues. Some things I've thought up so far:

• county zoning
• county building permit process
• easements
• water table (there's no water/sewer/electric)

But really, short of talking to the listing agent who I imagine is primarily motivated by sealing the deal, I'm not sure what sort of due diligence I should engage in.