At Mt. Hood, Oregon, the Soil Conservations Service has developed and conducted evaluation tests of the pressure pillow approach to measuring the equivalent water content of the snow. Results indicated this method to be a practical, economical and accurate method of measuring the equivalent water content of the snow. The pressure pillow snow gage provides a continuous recording of any changes in the water content of the snow. Abstract At Mt. Hood, Oregon, the Soil Conservations Service has developed and conducted evaluation tests of the pressure pillow approach to measuring the equivalent water content of the snow. Results indicated this method to be a practical, economical and accurate method of measuring the equivalent water content of the snow. The pressure pillow snow gage provides a continuous recording of any changes in the water content of the snow.