<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">canyons</topic></authority><related type="other"><topic>valleys</topic></related><related type="other"><topic>gorges</topic></related><related type="broader"><topic>fluvial landforms</topic></related><variant type="other"><topic>canyon</topic></variant><variant type="other"><topic>cañons</topic></variant> <note xml:lang="en"><![CDATA[ Deep, steep-sided land depressions, often having a river at the bottom; common to arid and semi-arid areas. Distinct from "valleys (landforms)," which tend to have a flattish landscape rather than high, precipitous slopes. Distinct from "gorges (landforms)," which tend to be smaller, narrower, and more rocky. ]]></note></mads>