75. If visibility permits, Little Gull Island Light will break the horizon at a range of approximately __________.

The geographic range, calculated by summing the horizon distances of the light and the observer's eye height, is approximately 15.6 nautical miles. This distance represents when the light will break the horizon, considering the curvature of the Earth and is determined by the formula D = 1.17√h, applied to both the light and the observer.