headwall
Noun
Meaning
(geography) The highest cliff of a glacial cirque.
(geology) The steep cliff at the back of a cirque.
(civil engineering) A retaining wall at the outlet of a drain or culvert.
Source: en.wiktionary.orgExamples
The top of the route traversed left across the East Face to avoid a vertical headwall and joined the uppermost part of the Abruzzi route.
Their bodies were later found below the summit headwall.
Slovenia’s Domen Škofic had a chance to match—or best—Megos’s highpoint, as the entire men’s competition came down to the final move on the headwall.
Here she nears the headwall in this year’s Finals as the sun sinks behind the mountains.