I'm planning a Yosemite trip for this summer. In reading up on the rules on fire restrictions, I saw this:

When and where fire restrictions are not in effect, wood fires are allowed in existing fire rings only and prohibited above 9,600 feet in elevation.

We'll be backpacking from Ten Lakes to May Lake, which will only be above 9,600ft at certain points, so I'm excited to have some campfires when we're at the lower altitudes of our trip. However, I'm not entirely clear on what a "fire ring" will look like--google searches show me the kinds of metal things you'd have on a campground or in your backyard.

What do these "fire rings" look like and--if anyone has Yosemite knowledge--how often will they be along our trail (or where can I go to find this information)?