Surin is the capital of the capital of Surin province. Its population is small, approximately 40,000 (bear in mind that the province itself is densely populated). It is about 450km from Bangkok and 50km from the Cambodian border. A quiet town, its one claim to fame is its annual 'Elephant Roundup', which takes place in November (book a room in advance). http://wikitravel.org/en/Surin