Sawyer Park is one of those rarely visited "parks" because you can't drive to it. Hiking is required.
The Sawyer Park camp-site is only accessible by hiking or by a boat. This is primitive (dispersed) camping. There are a few areas with clear land or tent pads where you may camp. But there are also zones where you may simply camp wherever you can setup a tent or hammock. There is an old latrine at this site, but it is in poor shape and no-one really uses it. Be prepared to dig a cat hole.
From the closest parking to the posted coords is almost 1 mile "as the crow flies". And the final is about another 0.2 miles beyond that. There is just a single redirector which is at the posted coords.