Cuexcomate

thumb|Sinter cone built by Cuexcomate geyser thumb|Staircase leading into the crater of Cuexcomate geyser thumb|right|Layers in the crater walls Cuexcomate () is an inactive geyser in Puebla city, Puebla state, Mexico. The sinter cone that the geyser built up around its vent is tall and has a diameter of . A central crater within the cone is up to wide and deep (extending below ground level).

Cuexcomate's name is derived from the Nahuatl term cuezcomatl "a large earthen jar used to store grain", which it resembles. The geyser was formed before the 1064 eruption of the Popocatépetl, an active volcano and the second highest peak in Mexico, which likely activated geothermal spring circulation that cut upward through Mesozoic limestone and deposited the geyser and the springs around it. The geyser's rock composition is 99% calcite, differing from typical silica sinter deposits.