The Mojave Desert is usually thought to be a hot and barren wasteland, but for those who have discovered the stark beauty of the desert landscape, the region offers unparalleled outdoor recreation, wildlife and historic site opportunities unlike anywhere else on earth. Over 22,000 square miles of parts of Nevada, Utah, Arizona and California make up the Mojave Desert, and one can easily tell they are in the area by the presence of the distinctive Joshua tree. The desert is one of the most popular tourist spots in North America due to the tourism boom going on in Las Vegas, but the four national parks and several historic landmarks within the Mojave Desert's boundaries are drawing an increasing number of people looking for a unique adventure.