A glacial spring, generally discharging supercooled water with a significant hydrostatic head.

North-looking photograph of a large fountain composed of rock-flour-rich, cold glacial meltwater. The fountain is bubbling to the surface of an unnamed ice-marginal stream adjacent to the debris-covered western terminus of Malaspina Glacier, St Elias Mountains, Wrangell-St. Elias National Park, Alaska.

USGS - https://pubs.usgs.gov/of/2004/1216/f/f.html