adj. — especially Outdoors
without access to electricity or other utilities, often in reference to a campsite.
Type: 5. Frequency — Unserviced is currently most frequent in Canada with respect to camping (see Chart 1). US sources using the term with reference to camping are generally referring to Canadian destinations (see, e.g., the 1969 quotation from The New York Times in an article about Banff, AB).
See also COD-2, s.v. "unserviced", which is marked "Cdn".
See also: serviced
Images:

Chart 1: Internet Domain Search, 15 Oct. 2012