This obscure peak is a scrambling bonanza and a bunch of climby fun.

Nine of us head out on a Sierra Club climbing adventure with Dyadic, Spectre, and Tensor in our sites. Dyadic is easily the most difficult of the three. Ultimately we didn't get Tensor due to low water but it's the least interesting of the group.

We pushed through the sun for about six miles to camp in the valley and give ourselves an early start at Dyadic. From the obvious basecamp spot at the intersection of two canyons, it's a slow, two mile scramble over boulders just to place yourself at the base of mountain. From there it's class three put up to the summit with tricky route finding in several areas and a few problems in the higher end of three, some might rate it four. There are some points of real exposure and there is a touch of pucker factor, including at least one chimney. Throughout the rock is fickle, with the occasional graham cracker hold and water melon boulder. We were cautious and donned harnesses should we need a belay or rappel, but they didn't make sense for our route.

Beyond the climbing challenges, I'd rate route finding as the toughest bit. I was lucky in that our leader had experience on the peak and was well prepared. I'd heavily research the route if you're doing it fresh. Dyadic actual is the shy end of a small artete so you do a bit of up and over and some down before you're at the top.

If you like scrambling this is a blast but do your homework, give yourself plenty of time, and respect the exposure.