For many years a relatively early Gay Pride event, Las Vegas Pride now takes place in early September - the date this year is September 6 and 7, 2013. Fall is a fine time to visit this desert metropolis (which will have cooled down a bit from its white-hot summer). Las Vegas has been one of the fastest-growing cities in the past three decades, and similarly, its GLBT scene has become larger, more visible, and more politically active in this time. The city's first Gay Pride took place in 1983 - there's a nice synopsis of the event's history on the Pride Las Vegas website. More than 10,000 people attend the event each year.
Las Vegas Gay Pride is built around two key events, Las Vegas Pride Night Parade, held on Friday; and the Las Vegas Pride Festival Festival, which takes place the following day, Saturday.
Plenty of gay bars as well as gay-popular restaurants, hotels, and shops have special events and parties throughout Pride Week. Check local gay papers and websites, such as Q Vegas for details. For general travel-planning advice, visit the excellent gay travel site produced by the city's official tourism organization, the Las Vegas Convention and Visitors Association.