Abstract: A triangular base, sign post mounting system comprising of a slightly tapered inside bore in the shape of a round sign post which bore is created by attaching two rounded halves created from mild steel to a triangular base in such a way that the rounded inside of the two halves are facing each other so as to create a rounded and slightly tapered inside bore and so that the two halves are separated from one another on opposite sides of the inside bore by two narrow adjustment gaps running parallel with the bore. The system has four heavy duty lugs welded onto the outside of the formed halves at a point near the top of the formed halves and positioned so that there are two pairs of lugs facing across from each other through which two exterior clamping bolts can be inserted to securely fasten a sign post to the system.