Essentially, I was sampling the lower trail portion for the hike to Iron Mountain. Along the way, I veered off the trail to reach Bonita Peak. From the summit, there is a good viewpoint of the remainder of the route up Big Iron. Although, it does look more doable when just looking at it from a distance., looks are deceiving. I then backtracked to the saddle and took a use trail to Peak 3529. About half way there, it turned into a bushwhacking adventure. On top is a small register in a glass jar. My entry was only the third one for the year.