Las Vegas is not only about gambling, partying and making certain that everything that you do there stays there: it’s just mostly about those things. If you’re feeling a little grimy from the previous night or need to soothe your hurt pride from losses incurred at the blackjack table, take solace in the knowledge there’s a wealth of natural beauty and interesting side trips at your disposal. Last week I discussed the underappreciated gems off the Strip — but if you’re willing to travel a bit farther, the rewards become a lot more beautiful. The Hoover Dam, Lake Mead and the Grand Canyon are among the most popular — but here are a few more options that are both less obvious and, in some cases, a lot closer.