Las Vegas, thanks to the crowds, is as safe as any other big city for a woman traveling alone. A woman on her own should, of course, take the usual precautions and should be wary of hustlers and drunken businessmen who may mistake her for a "working girl." (Alas, million-dollar proposals a la Robert Redford are a rarity.) Many of the big hotels (all MGM MIRAGE hotels, for example) have security guards stationed at the elevators at night to prevent anyone other than guests from going up to the room floors. Ask when you make your reservation. If you're anxious, ask a security guard to escort you to your room. Always double-lock your door and deadbolt it to prevent intruders from entering.
Check out the award-winning website Journeywoman (www.journeywoman.com), a "real life" women's travel-information network where you can sign up for a free e-mail newsletter and get advice on everything from etiquette and dress to safety. The travel guide Safety and Security for Women Who Travel by Sheila Swan and Peter Laufer (Travelers' Tales Guides), offering common-sense tips on safe travel, was updated in 2004.