Behind the Festival Hall was the Colonnade of States,
which  featured a monument to the thirteen states and
the `Indian Territory' that was gained by the United States
from the  Louisiana Purchase.  This striking feature was 52
foot high and was a quarter of a mile long. The colonnade 
cost  an additional 59,740 dollars to build. It  symbolically
represented the success, wisdom and foresight of the
Louisiana Purchase.

In front of the Festival Hall were the Cascades located in
front of Festival Hall and the Grand Basin. Pumps pushed 
45,000 gallons of water a minute  through  man-made falls
into the Grand Basin. The centerpiece of the Fair, the East
and West Cascades represented the Pacific and Atlantic
Oceans and symbolized man’s control over nature.
The Cascades were  three in number,  the largest of the
three is the central Cascade. The water gushed forth from
a fountain  24 feet above the  level of the terrace, and spread
out into a stream 45 feet  wide and 14 inches deep, falling
down  the long slope of   ledges or steps, spreading to a
width of 150 feet as it  took its final plunge into the Grand Basin.

This Grand Basin was semi-circular in shape and 600 feet in diameter.

Four magnificent  artificial fountains shot water up to 76 feet high  from the Grand Basin

The three Cascades  were lined with an massive amount of  sculptures from the the top of the hill to the basin.  Along the edges of the Cascades, powerful vertical and  horizontal jets of water shot  from artistic sculptures and fell into the Cascade basin.  The Cascades roughly cost 120,000 to build, with another 100,000 dollars in  additional costs of staircases and balustrades,*  etc.

At night,  thousands of lights  had been placed on the  Hall's   exterior and along the Cascades as a
celebration of electricity  and combining the classicalartistry of beauty with modernization and invention.

* balustrades are  rows of repeating  small posts which support the upper rail of a railing.
Lee  Gaskins'   AT THE FAIR  The 1904 St. Louis World's   Fair 
                   Web  Design and Art/Illustration   copyrighted  2008
Spirit of the Pacific Fountain at the Cascade Gardens
Terrace of the States
The Colonnade of States stretched east and west of Festival Hall. The large female statues represented the 13 US States that had been ‘carved’ from the Louisiana Purchase  and Indian Territory, (which in 1904 was separate from Oklahoma Territory.)  The Indian Territory became part of Oklahoma when it was admitted as a state in 1907.  The Missouri statue was sculpted by Alexander Stirling Calder.
Main Cascades, the scale  was   enormous.

Initially the Cascades ran all day, but by July 5th, they were reduced to only 4 hours daily.

The lagoons  were fed by eight water pipes of such  capacity that it could fill the  lagoons in 40 hours

The lagoons were  provided with eight feed pipes from water  mains of such capacity that the entire lake could be drained when required and refilled with fresh
water as often as  needed in  in  40 hours.

A filter plant at the southwest corner of the Mining Building was  designed to supply the loss from
seepage and evaporation and was operated continuously during the life of the Fair.

The most elaborate  formal gardening display was  upon the slope  that was called the Cascade Gardens,  which was located  in the  southern part of the `central  picture,' south of the Grand Basin.

Between the Education and Electricity Palaces, the gardens were half a mile in length, extending in a longsouthern  sweep around the end of the Basin and  lagoons. The slope was 300 feet wide, and 60 feet high.Between and beyond  the Cascades were huge  lawns, accented with  rich embroideries of flowers. Cementwalks and flights of easy steps  provided  throughout the vast gardens.

One  of  the  huge electric centrifugal pumps  that powered  the  fountains  underneath  the  Cascades.
The Colonnade or Pavilion Resturant.