<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31324165</termId><termName>landforms</termName><termType>PT</termType><termNote><![CDATA[ Geomorphic features of the earth's surface formed by natural processes and that have definable composition and range of characteristics, which recur wherever the features are found and that reflect similar surface and subsurface conditions. Typically reserved for features above water. For marine landforms, use "undersea landforms." ]]></termNote><termCreatedDate>2026-03-30 20:27:25</termCreatedDate><relation><relationType>UF</relationType><termId>31324166</termId><termName>land form</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31324167</termId><termName>land forms</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31324168</termId><termName>landform</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31307246</termId><termName>natural landscapes</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>31402788</termId><termName>terrestrial features</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351698</termId><termName>shores</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351701</termId><termName>coastlines</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351709</termId><termName>buttes</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351711</termId><termName>caves</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351713</termId><termName>cliffs</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351717</termId><termName>valleys</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351720</termId><termName>gullies</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351724</termId><termName>hills</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351726</termId><termName>isthmuses</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351729</termId><termName>mountains</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351731</termId><termName>peaks</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351733</termId><termName>peninsulas</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351735</termId><termName>plains</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351737</termId><termName>reefs</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351739</termId><termName>mesas</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351741</termId><termName>glacial 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landforms</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351762</termId><termName>eolian landforms</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351767</termId><termName>plateaus</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351769</termId><termName>swales</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351771</termId><termName>sand bars</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351779</termId><termName>flats</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351781</termId><termName>escarpments</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351784</termId><termName>slopes</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351787</termId><termName>subcontinents</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351789</termId><termName>watersheds</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351792</termId><termName>massifs</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351795</termId><termName>passes</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351801</termId><termName>ridges</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351803</termId><termName>sinkholes</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31320575</termId><termName>speleothems</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351808</termId><termName>defiles</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351810</termId><termName>mountain ranges</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351813</termId><termName>mountain systems</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351816</termId><termName>gaps</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351818</termId><termName>divides</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351820</termId><termName>natural arches</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351823</termId><termName>natural 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fields</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351856</termId><termName>gravel fields</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351859</termId><termName>rockfalls</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351861</termId><termName>sand areas</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351865</termId><termName>salt areas</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351869</termId><termName>slides</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351871</termId><termName>saddles</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351873</termId><termName>bars</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351875</termId><termName>moors</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351878</termId><termName>heaths</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351880</termId><termName>lava flows</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351883</termId><termName>clearings</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351885</termId><termName>flood control basins</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351888</termId><termName>banks</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351890</termId><termName>cones</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351892</termId><termName>fissures</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351894</termId><termName>clefts</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351896</termId><termName>calderas</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351898</termId><termName>craters</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351900</termId><termName>volcanic landforms</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351903</termId><termName>steppes</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351905</termId><termName>spurs</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351907</termId><termName>badlands</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351909</termId><termName>shoals</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351911</termId><termName>deeps</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351913</termId><termName>blowholes</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351915</termId><termName>dry lakes</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351919</termId><termName>sills</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351921</termId><termName>karst areas</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351926</termId><termName>drainage basins</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351932</termId><termName>headlands</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351934</termId><termName>tectonic plates</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351938</termId><termName>landmasses</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351968</termId><termName>continental shelves</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351942</termId><termName>downs</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351944</termId><termName>coalfields</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351947</termId><termName>observation points</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351950</termId><termName>ditch mouths</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351952</termId><termName>rocks</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351955</termId><termName>dry waterfalls</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351958</termId><termName>hoodoos</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351960</termId><termName>pinnacles</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351962</termId><termName>pillars</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351964</termId><termName>rims</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31351966</termId><termName>fins</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31300129</termId><termName>terrestrial</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31324173</termId><termName>undersea landforms</termName><termType>PT</termType></relation></term>  </Zthes>