https://www.nps.gov/cham/planyourvisit/hours.htm
Operating Hours - Chamizal National Memorial (U.S. National Park Service)
chamizal national memorialoperating hoursparkservice
https://texastimetravel.com/directory/chamizal-national-memorial-tour/
Chamizal National Memorial | Texas Time Travel
For more than 100 years a continuous debate over the land known as the Chamizal - 600 acres between the bed of the Rio Grande in 1852 and the present channel
chamizal national memorialtime traveltexas