Quick Answer
For wilderness survival, source water from streams, rivers, and snow, and purify it using methods like boiling, solar disinfection, and water filters. Collect dew and rainwater as supplementary sources. Use water wisely to avoid dehydration.
Finding and Collecting Water Sources
When searching for water sources, look for signs of recent water flow, such as lush vegetation, mud, or animal tracks. In a cold climate, snow and ice can be a reliable source of water. Melt snow or ice by placing it in a clear plastic bag and leaving it in the sun, or by using a simple solar still. Collect water from streams and rivers by wading or using a makeshift scoop or dipper.
Purifying Water
Purify water to prevent waterborne illnesses like giardiasis and cryptosporidiosis. Boiling is the most effective method, but it may not be practical in all situations. Boil water for 1-3 minutes at a rolling boil to kill bacteria, viruses, and protozoa. Solar disinfection (SODIS) is a simple and effective method: place water in a clear plastic bottle and leave it in direct sunlight for at least 6 hours. Use a portable water filter or purification tablets as an alternative.
Supplemental Water Sources
In addition to streams, rivers, and snow, collect dew and rainwater to supplement your water supply. Use a cloth or plastic sheet to collect dew, and place it in a container to store the water. During rainstorms, use a tarp or plastic sheet to collect and store rainwater. Be cautious when consuming rainwater, as it may contain contaminants like particulate matter and chemicals.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.