If you hunt in a state that has Chronic Waste Disease regulations You'll need the following measurements before you remove the hide from the head in order for your taxidermist to properly mount your trophy.
D1. Measure 3" up from the tip of the nose and mark. D2. From this mark measure to the tip of the right antler. D3. From this mark measure to the tip of the left Antler.
G1. Across the head between the front corners of the eyes.
G2. Across the head between the rear corners of the eyes.