Versions of Texas Natural Resources Code > Title 2 > Subtitle B > Chapter 21 - Surveys And Field Notes on LawServer 2014 Texas Natural Resources Code > Title 2 > Subtitle B > Chapter 21 – Surveys and Field Notes 2011 Texas Natural Resources Code > Title 2 > Subtitle B > Chapter 21 – Surveys and Field Notes 2009 Texas Natural Resources Code > Title 2 > Subtitle B > Chapter 21 – Surveys And Field Notes 2008 Texas Codes > Natural Resources Code > Title 2 > Subtitle B > Chapter 21 – Surveys And Field Notes