a dragon fly and other bugs scalded in the green and turquoise waters of the morning glory pool in yellowstone national park

basin boiling brilliant bugs caldera chain clear continental crater deep divide dragon dragonfly ecology environment fly fumes geologic geology geothermal geyser glory green group heat hot insects lake landmark landscape mineral morning national natural nature other outdoors park pool scalded spring states steam steaming sulphur thermal trail travel turquoise united upper usa vacation vapor volcanic volcano water waters wild wilderness wings wyoming yellow yellowstone