The interpretation and drawing of upstream map is a simple and clear upstream route map drawn according to the topographic characteristics of canyon streams, and it is one of the items that must be prepared before upstream. Experienced upstream people should clearly understand the various terrain features encountered in the upstream area according to this map, so as to make various preparations purposefully. Interpreting the upstream map is the basic skill of the upstream. You can learn to draw the upstream map so that the upstream organizations can get more valuable information for communication.
The upstream map is generally a topographic map with the scale of 1:50000, and the content should be enough to show the main topographic features, such as rock piles, waterfalls and deep pools. It is not appropriate for the plot to be too thick and too detailed. Too thick to reflect the characteristics of the overall route, the details are messy and featureless. Generally speaking, topographic maps less than 1cm are omitted. The main landforms depicted on the map are: rock piles, cliffs, waterfalls, deep pools and other characteristic landforms, and the confluence and diversion points of streams are marked.
The equipment needed for upstream swimming is different from general mountaineering activities, so professional equipment is often used, and some technical equipment is also involved. The upstream equipment varies with the height of the valley, the difficulty of climbing method or route. When entering a high-level valley, be sure to ensure that the equipment meets the line requirements.
Personal equipment
Helmet: It is best to use a climbing helmet to protect the head to avoid falling rocks or being directly hit by hard objects during climbing and sliding;
Upstream shoes: essential equipment for upstream travel, and upstream shoes with felt soles can effectively prevent slipping;
Leggings: made of diving cloth to protect the calf from bumps and cuts, and the long tube can also protect the knee;
Quick-drying pants: sweat-wicking quick-drying long-sleeved pants;
Backpack: The size of the backpack depends on the number of days of travel. It is advisable to go back and forth about 30 liters on the same day, and travel more than 50 liters in two days, but it should not be too large, in order to maintain the center of gravity and high drilling;
Waterproof bag: prevent sleeping bags, clothes, cameras, etc. It is necessary to put a waterproof bag in the backpack because it is wet when launching from it.
Other equipment: headlights, maps, compasses, altimeters, walkie-talkies, raincoats, warm clothes, gloves, hiking shoes, life jackets, goggles, knives, personal medicines, etc.
Camping equipment: camping equipment such as tents or sleeping bags, sleeping bags, sleeping mats and stoves should also be brought to the 2 nd event;
Protective equipment: safety belt, main lock, splay ring, flat belt cover, etc.
Group equipment
GPS, large-scale contour topographic map, first-aid medicine bag, life-saving blanket, main rope, auxiliary rope, rock nail, rock plug, quick hanging, etc.