You might want to consider the Yosemite High Sierra Camps.

They are anywhere from 6 to about 10 miles apart. Each camp has overnight accomodation, if you don't want to carry all the necessary equipment. They also serve both breakfast, dinner, and can provide a sack lunch too.

You can access some fantastic areas of Yosemite National Park not seen by most visitors.

Here is the website:
http://www.yosemitepark.com/Accomoda...erraCamps.aspx