April 24th hike to Monkey head falls

This was a great hike in late April. We normally go out in the fall and winter months but we all had a day off in the spring (which is rare for most of us) so we got to enjoy a warmer hike with each other. The hike to get to this waterfall is a little tricky, Some of the trail has eroded so you have to watch your step.
Can you guess why we call it monkey head?