- Steam is water vapour (water in the gas phase), often mixed with air and/or an aerosol of liquid water droplets. This may occur due to evaporation or due to boiling, where heat is applied until water reaches the enthalpy of vaporization. Steam that is saturated or superheated (water vapor) is invisible; however, wet steam, a visible mist or aerosol of water droplets, is often referred to as “steam”.
- Boulder River Wilderness (Wikipedia)
Boulder River Wilderness is a 48,674-acre (197 km2) wilderness area within the Mount Baker-Snoqualmie National Forest in the western Cascade Range of Washington state.