Rattlesnakes x 2

We dropped the RV off for fluids replacement very early this morning.  After a really terrible breakfast, we went for a hike in the Tucson Mountain Park before it got too hot.
Look dead center in the photo.  Do you see anything?

 

This is a rattlesnake on the trail.  I came within a foot of stepping on it.  It didn't rattle! It was very obliging and moved off the trail so we could continue up the hill.

 

Fifty feet later we ran into a second snake.  He was not giving ground.  We capitulated and reversed course.

 

We may be done with hiking/biking in the desert.  Rattlers just scare the living snot out of me!