Shield
Per fess Gules and Argent, on a stylized shovel blade point down counterchanged a bezant.
Crest
That for the regiments and separate battalions of the South Dakota Army National Guard: On a wreath of the colors Argent and Gules, a coyote statant Proper.
Motto
QUAM MAXIMIS ITINERIBUS (With The Utmost Possible Speed).
Shield
The colors scarlet and white are for the Corps of Engineers. The conventionalized shovel charged with the gold coin represents both engineering functions and the gold mining which is the principle wealth producing activity of South Dakota, home area of the organization.
Crest
The crest is that of the South Dakota Army National Guard.
The coat of arms was approved on 16 March 1959. It was cancelled on 6 July 1972.