More people visit the Grand Canyon from Las Vegas than from anywhere else. Lake Mead National Recreation Area is only 20 minutes east of Las Vegas. Lake Mead has over 10 million visitors a year. Hoover Dam is only 30 minutes from Las Vegas. Zion National Park and Bryce Canyon, in Utah, are only a few hours away from Las Vegas.
Death Valley gets more visitors from Las Vegas than from anywhere else.
Yosemite is also only a few hours away from Las Vegas. There are several 'local' parks that are just as outstanding as these. The Valley Of Fire is a state park which has over 200,000 visitors per year. Red Rock Canyon is a favorite of the locals. The Spring Mountains with forests, skiing, snowboarding and camping are also a local favorite.