Sonoran Desert desert is a popular route to attempt unauthorized entry across the border. The harsh conditions mean that the 3-5-day march, usually moving at night to minimize exposure to the heat, often ends in death. There are many National Parks and Monuments; federal and state nature reserves and wildlife refuges; state, county, and city parks; and government or nonprofit group operated natural history museums, science research institutes, and botanical gardens and desert landscape gardens. Sonoran Desert The Sonoran Desert is a North American desert which covers large parts of the Southwestern United States in Arizona and California and of Northwestern Mexico
Thar Desert was conceived to halt spreading of the desert to fertile areas. There are few local tree species suitable for planting in the desert, which are slow growing. Therefore, exotic tree species were introduced for plantation. Many species of Eucalyptus, Acacia, Cassia and other genera from Israel, Australia, US, Russia, Zimbabwe, Chile, Peru and Sudan have been tried in Thar Desert. "Acacia tortilis" has proved to be the most promising species for desert afforestation and the jojoba is another promising species of economic value found suitable for planting in these areas. There are several protected areas in the Thar Desert. Stretches