Weeping Wall, Natural waterfall in Glacier National Park, Montana

Weeping Wall is a 100-metre-long, 10-metre-high rock face along Going-to-the-Sun Road in Glacier National Park, Montana. It seeps water from the side of Haystack Butte and the Garden Wall, fed by snowmelt runoff, so the water runs down its walls like a weeping wall.

The Weeping Wall lies along Going-to-the-Sun Road, the mountain route built across Glacier National Park in the 1920s and 1930s. The road was cut into the slopes below Haystack Butte and the Garden Wall, and the rock face named for its seeping water stands beside it. The water comes from snowmelt runoff, not from a spring opened by the roadworks.

The name comes from the water that, during snowmelt, runs down the rock face and forms a kind of wall of water. The 100-metre-long, 10-metre-high rock wall is a roadside landmark on Going-to-the-Sun Road, where travellers stop to watch the runoff seep from the stone.

The wall runs about 100 metres along Going-to-the-Sun Road, cut into the flank of Haystack Butte and the Garden Wall. Water output follows snowmelt, so the flow is heaviest in late spring and early summer and thins later in the season. The feature is seen from the road itself; drivers pass directly beneath the seeping rock.

The wall is about 100 metres long and 10 metres high, and its name comes from meltwater that runs down the rock in spring, forming a curtain of water beside the road.