Rob Williams said:

I think the new photo is the old roadbed along Fish Creek.  Those alders look pretty familiar.

You're right, Rob.  It's between the second and third creeks.  It was a great place to go for a walk on a snowy morning. 

I don't think this is on an official trail, although there is a faint trail leading the way...It is in the wilderness, and in the district. It's a very unique area...

If that's the dike I think it is, then I agree that it's very interesting. The exposed portions of the dike make me think of an undulating rock serpent traveling across the surface of the earth.

Yes, even more so since this is one of two triangular shaped stacks between the buttes...

I think there may be a smaller third one to the north of the two larger ones. The next time I'm up there, I'm going to see if I can get a picture of them lined up.