My definition of "over the hill" is when I can no longer go up and down said hill. In other words, when I'm no longer able to put one foot in front of the other, or I can't see well enough to drive to the trailhead....

On the other hand, I'll no doubt find something else to do then, until my time comes!
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May your trails be crooked, winding, lonesome, dangerous, leading to the most amazing view--E. Abbey