Coolburn,
If you take the North Dome Trail past Indian Rock trail Junction and keep going, you cross a creek (last water source) then ascend onto Indian Ridge. keep looking to the right and you will see a camp site just before the trail turns left down to North Dome. There used to be a rock fire ring and the site is next to shrubs. You will have to carry water for the last mile or so but the location is awesome, you will be looking directly at the face of Half Dome from your tent. If I could work out how to attache photos I could show you:-)