Table 1. Regolith textures observed at 1:25,000 within a 5 km by 5 km cell

Label	Texture name	Area (km2)	Description	Example location (Fig. 6)
p-eht	Prominent elephant hide texture	594–2,750	Decameter- to ~100 meter-wide hummocky “prominent” lobate to sinuous segments that are separated by meters-wide troughs and most commonly contour median slopes 5° to 15°, and less commonly appear on flat surfaces. Lineaments of varying lengths commonly cross p-eht, appearing either parallel to the slope or at a 30° to 50° cross-slope angle (depending on the lighting direction), creating a cross-hatch pattern of discontinuous rounded rhomboid shapes.	–89.293°S, 315.575°E;–88.357°S, 336.492°E
m-eht	Moderate elephant hide texture	627–1,925	~100- to 250-meter-wide patterns that form “moderate” or subdued lobate segments that are separated by meter- to decameter-wide troughs and contour median slopes up to 20°. Textures gradually become less pronounced as segment size increases in width (short axis). Lineaments are less distinct.	–88.915°S, 88.555°E
ss-eht	Stair-stepped elephant hide texture	1,034–2,675	Meter- to decameter-wide wavy to linear terraced segments that are separated by meter-wide benches on median slopes 15° to 35°. Wavy ss-eht resembles p-eht where terraced segments are discontinuous. Lineaments of varying lengths commonly cross ss-eht, typically appearing perpendicular to the slope.	–88.037°S, 196.547°E
non-eht	No observable elephant hide texture	325	Cratered highlands surface or smooth crater floors with no observable EHT. Median slopes ≤ 5°.	–88.162°S, 114.476°E
mixed	Mixture of textures	5,075–10,170	Unit ss-eht mixed with m-eht, p-eht, and/or non-eht.	–88.238°S, 331.477°E

We calculated the areal coverage of textures by counting the number of cells where the texture was classified as dominant (covering most of the cell), present (covering less than half of the cell), or absent. To estimate the low end of areal coverage, we counted all dominant cells plus half the number of present cells. To calculate the upper limit, we counted both dominant and present cells as fully contributing to the areal coverage.