Straddling the Colorado-Utah border, Dinosaur National Monument is a must for any dinosaur enthusiast. A two-story hill teeming with fossils -- many still in the complete skeletal shapes of the dinosaurs -- greets visitors at one of the few places in the world where you can touch a dinosaur bone still embedded in the earth. The Dinosaur Quarry (Visitor center: 7 mi north of Jensen, Utah, on Rte. 139. 970/374-3000), is closed because of damage to the structural integrity of the building. There is a temporary visitor center set up, and although the main exhibit wall of dinosaur fossils is also closed, some of them can still be seen by hiking about a half mile from the temporary site. A shuttle bus carries visitors from the temporary visitor center to the quarry. The Colorado side of the park offers some of the best hiking in the West, along the Harpers Corner and Echo Park Drive routes, and the ominous-sounding Canyon of Lodore (where the Green River rapids buffet rafts). The drive is only accessible in summer -- even then, four-wheel drive is preferable -- and some of the most breathtaking overlooks are well off the beaten path.