Presented on the outdoor site of the Musée de Lachine, the artwork, coloured bright red, stands out in the landscape. At the top, a volume pivots on its axis when blown by the wind. The artwork offers a series of interlinked trapezoids, triangles, and curves. This play on angles and planes gives the structure of the artwork both stability and openness. An effect of lightness has been obtained by detaching the elements from the ground and cutting out an arc at the bottom of the sculpture.

Trudeau also produced a second Spatio-mobile, in 1968. Both objects, seeming to synthesize research that he had conducted up to then, marked a pivotal moment in his production. Indeed, the curves in Spatio-mobile #1 refer to gothic architecture, a theme that would frequently be integrated into the artist’s later works, particularly the series Parvis et portail.

The artwork was presented first in 1966, at the Stratford Festival in Ontario, then the following year at Place des Arts in Montréal, on the occasion of the event Confrontation 67. In 1968, it was on display at the annual exhibition of the association of sculptors of Québec in Orford, and from 1969 to 1971 it was on site at Man and His World. Finally, it was installed on its present site.