On April 25, 2003, Allen alone came to the Utah blue John Canyon, blue John Canyon in Utah. Located in the eastern part of the remote, inaccessible, but the scenery is very beautiful. Here, he experienced a him unforgettable trip, because is expected to period short, starting when he only took a car, a mountain bike, a first aid kit, a climbing rope, to 8 cm long small pocket knife and a day's rations, but! He doesn't have a cell phone!!! Allen will be parked at the Horseshoe Canyon, about 70 kilometers away from the highway here, the same night he local camping. The next morning, he was riding on a mountain bike, the wind southbound 2.5 hours, arrived at the blue John canyon. This region is vast, spectacular, park has many places is very remote, so far no one involved, and to the Allen is the edge of the park to the West. This generation of unconsolidated sands, the journey difficult, canyon is deep and narrow sandstone may, at any time, slide or mobile, even in summer, the temperature difference between day and night can also be reached more than 20 DEG C. Arrived at the destination, Allen began his 24 kilometers of hiking, in blue John Canyon road for nearly three hours after, this boy is not honest, he came to a canyon about 1 meter wide, red sandstone are convex he Shun rock climbing. At first, everything went smoothly, at a height of 20 meters, he successful board a seemingly very solid rock, however, when he climb a 3 feet of rock joints, unfortunately, happened.... Allen pushed a blocking his path of boulders, ready to climb, giant stone shake shake, Allen slipped, suddenly down, the right hand and forearm is ruthlessly squeezed in the boulders and rock between! Incident too suddenly, to be Allen from the whole thing in awake, accompanied by pain, whether he to push, push, pull, pull is futile, Allen at the University of reading is to major in mechanical engineering, he spent himself all the knowledge, intelligence and physical strength, but after all, was a 360 kg heavy rocks! Because of red sandstone is relatively soft, he initially tried to the chiseling stone, but he only took a small pocket knife, in this case, the physical cost is undoubtedly extremely unwise, Allen can do only to maintain sober, save energy, waiting for extremely slim rescue. Allen started his desperate wait, he will grab in a rock seam, hold, then the climbing waistcoat buttoned, so it can be suspended in midair, the liberation of the feet. There are 2 a burrito, his backpack and a few pieces of chewing gum, and remaining about 350 ml of water, this is his only rations. He tried to save, hope stays for a long time. A night of. Although the proximity may, but desert temperatures still will fall below zero, the only shorts and a T-shirt Allen can only rely on their own strong physique to resist the cold. In the cold wind, fear, frustration, regret, anger and darkness came to him. He felt that he had failed to live up to those who loved him, and regretted that he had violated the safety rules of rock climbing. He carved his name on the wall, I hope those who love him to read his own experience some day in the future. In third days trapped, Allen drank the last drop of water. In fifth days trapped, Allen made his most important decision!!! Him from climbing bag took out the that handle 8 cm long folding knife and first-aid kit, put them in front of rock, and then a bandage tighten their right arm, along the right elbow, cut down. Because the knife is very blunt, Allen cut continuously for an hour, and finally right arm muscle and soft tissue cutting. And he broke his forearm near the radius of the wrist, within the next few minutes mobile location, on the principle of torque. With the help of rock fracture of the ulna. A lot of blood spewing out, red on his right arm of the rock, and flowed into the ground. As a large amount of blood loss, Allen almost fainting. However, he from the first-aid bag removed fungicidal ointment, bandages, etc., to his right arm emergency hemostasis. Allen trapped place is a steep cliff, from the bottom of the canyon with a distance of 25 meters, after simple hemostasis, he by climbing anchor rope fixed on the wall, with one arm with ropes dropped more than 20 meters, went to the hope of life. Wide desert canyon between China and Vietnam, the sand is more soft, more easy to sink, for ordinary people in this walk on is very difficult and laborious Allen not only blood loss, coma dehydration to race against time, and to walk at least seven miles to see a glimmer of hope. Fortunately, his luck at this time broke out, he stumbled near horseshoe Valley, walked the face of two Dutch healthy traveler! Two people quickly put food and water to Allen, and then in order to catch the time, three people continue to move forward. They walk through the "Grand Gallery" area, just 1 kilometers away from Allen's car, a helicopter came. (Allen 5 days did not go to work, his colleagues reported the police, the police sent a helicopter to find, in the Horseshoe Canyon to find Allen's car, is going to land inspection, saw the 3 of them! Tell them Allen bluntly: he had to cut off the arm in order to survive. After 12 minutes, the plane arrived at St. Mary's hospital. The most incredible events, let all the people are in shock happens, Allen didn't have anyone to help, walking into the emergency room!!!