Dogs reacting in Bear Lake County, Idaho

I was playing with my dogs about 200 feet from the campfire right before sunset. I heard a weird sound behind me, pretty far up the mountain. I thought that I just imagined it and kept playing with the dogs. After about 10 minutes I heard it again, along with a second call farther up the canyon. I thought that I imagined it. Another 5 or 10 minutes went by and I knew the third time that I had heard it. I was a very loud, sharp call very much like what a primate sounds like (from what I have seen on t.v.). I was instantly on edge, as I have camped/hiked in this area many times over about 10-12 years, without any previous incidence of these sounds. I went back to my campfire to start dinner when I heard it again-this time my dogs took notice and were very uneasy as well. After 2-3 more instances, with my 3 dogs cowering at my feet, I decided to respond. Immediately there was a call in reply that sounded agitated, They proceeded to call back and forth, progressively getting closer to my location, and it was getting dark. I got in the back of my SUV with my dogs to try to relax and think, and then I heard sounds very close in the trees not far from me. The dogs went from terrified to attack mode, barking and jumping at the back & side windows, and I realized the sun roof was open. I panicked, jumped over the seat and started the vehicle and jetted out of there.All of this happened in about an hour or so.