Hin Namno National Park was created by prime ministerial decree in January 2020.

[citation needed] As Hin Namno lies between the Khammuan limestone belt and the Annamite Range, there are many caves and limestone escarpments including the Xe Bang Fai River Cave.

The IUCN Green List is a global standard for protected area management performance.

[6] Plant communities in the reserve include evergreen, mixed deciduous, and dipterocarp forests.

The park includes areas of Central Indochina limestone karst forest, a distinctive plant community, also found in Phou Hin Poun reserve and in Vietnam, which is home to many endemic plants.