Here's a small water hole full of tadpoles.
I came across two small groups of young bighorn sheep. They didn't stick around for many photos.
It's a nice short hike, and an easy way to reach a place where you can catch great views to the south toward Parunuweap Canyon. Joe is right about the challenge facing anyone wanting to get to the very top. I hiked almost all the way around the summit block, but didn't find an easy way up. Skilled rock climbers would have no problem.
On my next trip I hope to return in order to walk over to "Lonely Peak" that sits south of Nippletop. Here's a google map centered on Separation Peak. The route I took is shown below.
This last photo shows the view north toward the road.