When the fountain explodes, it reaches a height of 600 feet, the same height as the arch. Additionally, there are four smaller fountains around the base of the main fountain to signify the Mississippi, Missouri, Meramec and Illinois rivers meeting at that location.
The fountain was an idea generated by St. Louis native Malcolm Martin. A community minded, civic based retired lawyer, Martin dreamed of developing a site that would complete the Arch. He desired a monument that would bring the two sides of the river together. The idea of a fountain that blew water high into the air matched the grandeur of the project that Martin was looking for. Martin purchased the park across the river and began development, and succeeded. After his death in 2004, the park became a memorial to him, which is where it gained it's name.