Radial Ice Betrays North Polar Hole
The image above shows the radial ice flow from the north polar opening to the hollow earth. This pattern projects outward from a conspicuous ring of ice approximately 80 miles in diameter. The 80 mile opening likely restricts to approximately 50 miles at its narrowest point.
According to calculations made by comparing the polar and equatorial diameters of the earth, a 50 mile opening would indicate that the crust is approximately 600 miles thick at the poles, slimmed down from an 800 mile crust at the equator.
With such a small diameter opening, it becomes apparent just how easily an "anomaly" such as this can be wiped from satellite imagery and kept from the prying eyes of the public.
(Unfortunately there is no source for this image.)