I too hold a long admiration and respect for the American Indian peoples. My understanding of a traditional hogan, is that it is made from wooden poles, tree bark and mud. The doorway of each hogan opening to the East, to catch the morning sun as well as good blessings. My point tho, is this is not a traditionarumoredgan, but a large rock overhang. Similar to one(altho much bigger) to one we have here in SE Ohio. Old Man's Cave is a rock overhang here in the Hocking Hills that bears it's name from a Civil War Southern soldier. Richard Rowe who upon deciding the War too much, deserted and traveled to Ohio, homing up within the "Cave" sharing the land with his Indian brothers. What is the story behind this untraditional Hogan, more to the point, the opening at the top. Doesn't look natural, so can only assume man-made.

Incidentally, long rumored to be a relative, but no definitive link established.