Skip to main content

Monitoring location Rio Grande Below Mesilla Dam NR Santo Tomas, NM - USGS-321317106471510

Important for you to know:

  • USGS will be performing maintenance on WDFN webpages beginning Tuesday, May 26. If you cannot access the page you are intending or are unexpectedly redirected to a different page, please reach out to wdfn@usgs.gov for assistance.