I discovered that a 30 degree slope is just at the limit of traction when the surface is dust mixed in with 2-6 inch broken rock shards. :yes:
Note: this is *not* reflecto-porn:
Yes, that's a railroad track attempting to cling to the canyon wall.
Time to get an inclinometer:

First time I went out with Teebes after he contacted me via a Youtube search - see HIM in all his stock, OEM condition following me around.