Carlsbad Irrigation District was created in 1887.
The area of Carlsbad Irrigation District is 22.112 square kilometers.
Carlsbad City Library was created in 1999.
Carlsbad State Beach was created in 1933.
Carlsbad Cave National Monument was created in 1923.
Carlsbad Caverns National Park was created on 1930-05-14.
US Congress changed the designation and the name of Carlsbad Cave National Monument, created in 1923, to Carlsbad Caverns National Park in 1930. Carlsbad Cavern, without the "s", is the name of the main tour cave. There are 117 caves known in the park.
Plastro Irrigation Systems was created in 1966.
Murrumbidgee Irrigation Limited was created in 1999.
Jain Irrigation Systems was created in 1989.
Imperial Irrigation District
In 1930, US Congress created Carlsbad Caverns National Park from the same area previously protected as Carlsbad Cave National Monument by President Calvin Coolidge.
The ancient sumerians developed the very first methods of irrigation.