atlauhtli (Mdz32r)
The compound glyph for the place name Tlalatlauhco here doubles as the element for ravine (atlauhtli). It would be difficult to cut out and isolate the ravine part of the compound. This atlauhtli, in contrast to some others (below, right), is horizontal, with a V-shaped opening on its side, with water coming out. The land (tlalli)--with its purple color and texturing with dots and sideways u's--is emphasized and not easily extracted, either.
c. 1541, but by 1553 at the latest
Stephanie Wood
ravines, barrancos, quebradas
a(tl), water, https://nahuatl.wired-humanities.org/content/atl
Codex Mendoza, folio 32 recto, https://digital.bodleian.ox.ac.uk/objects/2fea788e-2aa2-4f08-b6d9-648c00..., image 74 of 188.
The Bodleian Libraries, University of Oxford, hold the original manuscript, the MS. Arch. Selden. A. 1. This image is published here under the UK Creative Commons, “Attribution-NonCommercial-ShareAlike 3.0 License” (CC-BY-NC-SA 3.0).