The participants bicycle, sled or ski before jumping. Jannicke runs to the shed where she finds some skis, a sled, and a shotgun. Heavy loads were moved on boats, sledges (a primitive sled) or on rollers. The first Arctic explorers were men with sled dogs. They are frequently used by people offering dog sled adventures and long expeditions. Wingello hosts Sled Dog Trials in June. He managed to climb out using the harness attaching him to the sled. The Detour was a choice between Sled and Skate. He decides to try to pull her up the cliff on her sled. With the control of a backcountry sled, stunts become possible. Terrestrial locomotion is easier for phocids on ice, as they can sled along. The Alaskan Gold Rush brought renewed interest in the use of sled dogs as transportation. This mechanism typically takes the form of a sled that moves along a rail. These ballasts may only be added to the sled, not the rider. Sled Lab; and the National Tire Research Center in Southern Virginia.