Mount Bachelor: Observatory in the Sky (image) University of Washington Caption Mount Bachelor, in central Oregon, is tall enough to pierce the upper troposphere. Scientists who use the roof and upper floor of this ski resort building as an "observatory in the sky" can collect samples of air that originates in Asia and travels over the Pacific to the West Coast. Credit U of Washington Usage Restrictions Credit required Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.