This is a great choice for Spring. Plenty of peaks to climb in the area too.
We ascended the west face glaciers from White Chuck Basin and did 3 more peaks later that day. See the trip report for more information.
I've been wanting to climb this since I joined this site. I originally planned on going up the White Chuck glacier but it was impossible to reach it since it was surrounded by glacial flour-like quicksand this late in the year. Much of the glacier is now a series of lakes with the label on the USGS map in the middle of one of them. I opted for the Suiattle instead and was not disappointed. I loved it but I would only do it again in earlier season with the White Chuck Lakes Basin (as it should now be called) filled with snow because that thing is a pain when it's dry, boulder-y and muddy.
A quick 2fer while climbing Glacier Peak. I went up via the Suiattle Glacier from Glacier Gap, then descended via the White Chuck back to camp. It only added a mile to the route I would have taken anyway.
This is a fascinating plateau in a spectacular setting, well worth the effort to visit and very deserving of a page, thanks for writing it up Mr. Klenke. It is especially well-suited to ski visits; the slopes are perfect angle for easy to moderate cruising all around, up and down, in and about the bowls and summit points. When I visited the area to ski up to and climb Glacier Peak, I set aside an extra day just to ski the heck outta this area, and it was actually more fun than GP was… not that GP wasn’t fun, it was. The Kololos were just more… intricate, offering a variety of explorations and interesting unexpected turns.
Klenke's writeup is an informative treatise on this lonely peak. I wish he had left a pencil in the summit register though. Bring a small stubby one if you are going in. This is a great bonus peak if you are going in for Glacier Peak.