Over and under achievement

This is a proposal made on 2010-08-05. Please leave comments and suggestions on Talk:Over and under achievement, indicating whether you:

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This achievement would mark when a single hashpoint is reached at substantially different elevations. As an example, I awarded myself this achievement (as a gratuitous ribbon) for reaching the 2010-08-05 45 -122 hashpoint both on an elevated freeway ramp and on the ground, several dozen meters below. Other examples could include the top and bottom of a cliff with a substantial overhang, a balcony and the sidewalk beneath, different floors of a tall building, or the base and upper limbs of a substantial tree.

There could be occasions when this would overlap with an Air Geohash or an Underground Geohash, but it is a somewhat different and, I think, noteworthy feat.

Ribbon

This is the "gratuitous ribbon" I made myself:

Michael5000 earned the The Over and Under Achievement by reaching the same hashpoint at two different elevations (45, -122) geohash on 2010-08-05.