2998.PDF (usra.edu)

54th Lunar and Planetary Science Conference 2023 (LPI Contrib. No. 2806) 2998.pdf

A RELICT GLACIER NEAR MARS’ EQUATOR: EVIDENCE FOR RECENT GLACIATION AND VOLCANISM IN EASTERN NOCTIS LABYRINTHUS

Quote

Summary: A light-toned deposit (LTD) in Eastern Noctis Labyrinthus presents distinctive morphologic characteristics of a glacier. Although the glacier is likely relict, the preservation of fine-scale glacial features opens the possibility that H2O ice might still be preserved beneath LTD material. Recent equatorial glaciation, volcanism, and volcano-ice interaction on Mars are implied.

This may be a novel use of the word "recent". I didn't see a reference to how recent but the paper puts it in the Mars' Amazonian period - from about 3 billion years ago to the present, a very wide range. There may be water ice under there but I don't think that helps make Mars colonisation any easier. I suppose it could be a place to look for evidence of (past) life on Mars.