The University Libraries homepage - DATABASE SECTION - offers several sources for newspaper articles online, with both historical and contemporary information related to land, water and legal issues.
To use them you need a UNM login or to be working at a UNM Library computer.
The databases are grouped under Alpha letters.
Under Alpha N - Newspapers - Access Newspaper Archive Online can limit for NM newspapers - has scanned news pages for Santa Fe from 1849-2015, and Albuquerque and Las Vegas from 1880-1977; and some newspapers from more recent decades for other NM communities. Use the fields provided to help search and limit your topic. (Access Newspaper Archive Online can also search newspapers in other states and some countries, just change the limits and locations).
Alpha C - Chronicling America (Library of Congress website) - has scans of NM Spanish language newspapers before 1922. (It also can search early newspapers in other states).
Alpha N - New Mexico Newstand - has online news articles for Albuquerque since 1995 and Las Cruces and Roswell since 2004.