Approach the summit from the north on FS 600 - it's less than a quarter mile OW and about 100 feet gain. There is a GPS track provided by N7KOM here:
https://sotl.as/summits/W7O/CS-058. The GPX track instructions say:
Self explanatory as it is just walking up the road to the lookout, I guestimate from memory 1/2 mile walk from gate. Dutchman Peak Lookout is the last of the original cupola lookouts still in use, and is also one of the oldest, built in 1927. Outstanding views of course, and you can go into the lookout and check out some of their mapping and compassing tools. A bit steep and rocky at the top. You won't have trouble finding any spot for a pole.