Old West history buffs will delight in the 90-minute ranger-led tour of this ranch named after its builder, William Keys and his family. They built a homestead here on 160 acres in 1917 and turned it into a full working ranch, school, store and workshop. The buildings stand much as they did when Keys died in 1969. Check the website's calendar page for upcoming tour dates. Tickets must be purchased on the day at the Oasis Visitor Center.