<?xml version="1.0" encoding="UTF-8"?><urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:image="http://www.google.com/schemas/sitemap-image/1.1"><url><loc>https://underfootnotes.com/</loc><lastmod>2026-10-18</lastmod></url><url><loc>https://underfootnotes.com/cores/why-is-soil-not-just-crushed-rock/</loc><lastmod>2026-10-18</lastmod><image:image><image:loc>https://underfootnotes.com/figures/why-is-soil-not-just-crushed-rock-ottilie-brandvold.webp</image:loc></image:image></url><url><loc>https://underfootnotes.com/cores/the-map-that-read-the-rocks-how-william-smith-charted-the-layers/</loc><lastmod>2026-09-01</lastmod><image:image><image:loc>https://underfootnotes.com/figures/the-map-that-read-the-rocks-how-william-smith-charted-the-la-izaiah-barionnette.webp</image:loc></image:image><image:image><image:loc>https://underfootnotes.com/figures/the-map-that-read-the-rocks-how-william-smith-charted-the-la-figure.webp</image:loc></image:image></url><url><loc>https://underfootnotes.com/cores/how-did-we-learn-the-earth-has-a-core-we-have-never-seen/</loc><lastmod>2026-06-27</lastmod><image:image><image:loc>https://underfootnotes.com/figures/how-did-we-learn-the-earth-has-a-core-we-have-never-seen-priya-kettlewell.webp</image:loc></image:image><image:image><image:loc>https://underfootnotes.com/figures/how-did-we-learn-the-earth-has-a-core-we-have-never-seen-figure.webp</image:loc></image:image></url><url><loc>https://underfootnotes.com/cores/a-slinky-a-rope-and-a-stone-seeing-how-earthquake-waves-move/</loc><lastmod>2026-05-24</lastmod><image:image><image:loc>https://underfootnotes.com/figures/a-slinky-a-rope-and-a-stone-seeing-how-earthquake-waves-move-lucinda-maraki.webp</image:loc></image:image></url><url><loc>https://underfootnotes.com/cores/from-trapped-winds-to-springy-rock-how-we-learned-what-shakes-the-grou/</loc><lastmod>2026-03-31</lastmod><image:image><image:loc>https://underfootnotes.com/figures/from-trapped-winds-to-springy-rock-how-we-learned-what-shake-izaiah-barionnette.webp</image:loc></image:image><image:image><image:loc>https://underfootnotes.com/figures/from-trapped-winds-to-springy-rock-how-we-learned-what-shake-figure.webp</image:loc></image:image></url><url><loc>https://underfootnotes.com/cores/why-do-volcanoes-line-up-in-rings-and-chains/</loc><lastmod>2026-02-19</lastmod><image:image><image:loc>https://underfootnotes.com/figures/why-do-volcanoes-line-up-in-rings-and-chains-moana-aldridge.webp</image:loc></image:image><image:image><image:loc>https://underfootnotes.com/figures/why-do-volcanoes-line-up-in-rings-and-chains-figure.webp</image:loc></image:image></url><url><loc>https://underfootnotes.com/cores/why-does-water-expand-when-it-freezes-and-what-does-that-do-to-rock/</loc><lastmod>2026-01-16</lastmod><image:image><image:loc>https://underfootnotes.com/figures/why-does-water-expand-when-it-freezes-and-what-does-that-do--rewi-hallworth.webp</image:loc></image:image><image:image><image:loc>https://underfootnotes.com/figures/why-does-water-expand-when-it-freezes-and-what-does-that-do--figure.webp</image:loc></image:image></url><url><loc>https://underfootnotes.com/cores/why-a-pebble-feels-smooth-when-its-parent-rock-was-rough-how-we-learne/</loc><lastmod>2025-11-19</lastmod><image:image><image:loc>https://underfootnotes.com/figures/why-a-pebble-feels-smooth-when-its-parent-rock-was-rough-how-izaiah-barionnette.webp</image:loc></image:image><image:image><image:loc>https://underfootnotes.com/figures/why-a-pebble-feels-smooth-when-its-parent-rock-was-rough-how-figure.webp</image:loc></image:image></url><url><loc>https://underfootnotes.com/cores/how-did-people-figure-out-the-earth-is-billions-of-years-old/</loc><lastmod>2025-09-13</lastmod><image:image><image:loc>https://underfootnotes.com/figures/how-did-people-figure-out-the-earth-is-billions-of-years-old-moana-aldridge.webp</image:loc></image:image><image:image><image:loc>https://underfootnotes.com/figures/how-did-people-figure-out-the-earth-is-billions-of-years-old-figure.webp</image:loc></image:image></url><url><loc>https://underfootnotes.com/cores/why-do-rocks-come-in-three-families/</loc><lastmod>2025-07-13</lastmod><image:image><image:loc>https://underfootnotes.com/figures/why-do-rocks-come-in-three-families-priya-kettlewell.webp</image:loc></image:image><image:image><image:loc>https://underfootnotes.com/figures/why-do-rocks-come-in-three-families-figure.webp</image:loc></image:image></url><url><loc>https://underfootnotes.com/cores/the-continents-that-wouldn-t-sit-still-how-wegener-s-idea-was-eventual/</loc><lastmod>2025-06-12</lastmod><image:image><image:loc>https://underfootnotes.com/figures/the-continents-that-wouldn-t-sit-still-how-wegener-s-idea-wa-izaiah-barionnette.webp</image:loc></image:image><image:image><image:loc>https://underfootnotes.com/figures/the-continents-that-wouldn-t-sit-still-how-wegener-s-idea-wa-figure.webp</image:loc></image:image></url><url><loc>https://underfootnotes.com/cores/what-is-actually-under-your-boots-a-layer-by-layer-walk-down/</loc><lastmod>2025-06-02</lastmod><image:image><image:loc>https://underfootnotes.com/figures/what-is-actually-under-your-boots-a-layer-by-layer-walk-down-priya-kettlewell.webp</image:loc></image:image></url><url><loc>https://underfootnotes.com/cores/why-is-the-sea-salty-when-the-rain-is-fresh/</loc><lastmod>2025-04-07</lastmod><image:image><image:loc>https://underfootnotes.com/figures/why-is-the-sea-salty-when-the-rain-is-fresh-priya-kettlewell.webp</image:loc></image:image></url><url><loc>https://underfootnotes.com/layers/earth/</loc></url><url><loc>https://underfootnotes.com/layers/matter/</loc></url><url><loc>https://underfootnotes.com/layers/physics/</loc></url><url><loc>https://underfootnotes.com/layers/life/</loc></url><url><loc>https://underfootnotes.com/layers/sky/</loc></url><url><loc>https://underfootnotes.com/layers/big-questions/</loc></url><url><loc>https://underfootnotes.com/surveyors/izaiah-barionnette/</loc><lastmod>2026-09-01</lastmod><image:image><image:loc>https://underfootnotes.com/figures/izaiah-barionnette.webp</image:loc></image:image></url><url><loc>https://underfootnotes.com/surveyors/moana-aldridge/</loc><lastmod>2026-02-19</lastmod><image:image><image:loc>https://underfootnotes.com/figures/moana-aldridge.webp</image:loc></image:image></url><url><loc>https://underfootnotes.com/surveyors/tane-fairweather/</loc><lastmod>2026-10-18</lastmod><image:image><image:loc>https://underfootnotes.com/figures/tane-fairweather.webp</image:loc></image:image></url><url><loc>https://underfootnotes.com/surveyors/priya-kettlewell/</loc><lastmod>2026-06-27</lastmod><image:image><image:loc>https://underfootnotes.com/figures/priya-kettlewell.webp</image:loc></image:image></url><url><loc>https://underfootnotes.com/surveyors/hemi-corrigan/</loc><lastmod>2026-10-18</lastmod><image:image><image:loc>https://underfootnotes.com/figures/hemi-corrigan.webp</image:loc></image:image></url><url><loc>https://underfootnotes.com/surveyors/ottilie-brandvold/</loc><lastmod>2026-10-18</lastmod><image:image><image:loc>https://underfootnotes.com/figures/ottilie-brandvold.webp</image:loc></image:image></url><url><loc>https://underfootnotes.com/surveyors/rewi-hallworth/</loc><lastmod>2026-01-16</lastmod><image:image><image:loc>https://underfootnotes.com/figures/rewi-hallworth.webp</image:loc></image:image></url><url><loc>https://underfootnotes.com/surveyors/lucinda-maraki/</loc><lastmod>2026-05-24</lastmod><image:image><image:loc>https://underfootnotes.com/figures/lucinda-maraki.webp</image:loc></image:image></url><url><loc>https://underfootnotes.com/contributors-list/</loc></url><url><loc>https://underfootnotes.com/method/</loc></url></urlset>