The Cedar Breaks Rim Trail follows the edge of a 2,000-foot pink-limestone amphitheater on the Markagunt Plateau, at over 10,000 feet of elevation. The monument sits east of Cedar City via UT-148, the rim trail starts at the visitor center, and the views drop straight down into a curved bowl of eroded limestone hoodoos that look like a smaller, redder, higher-altitude version of Bryce Canyon.
What the elevation does
The visitor center is at 10,460 feet — the highest in the National Park Service. Visitors coming up from St. George (2,800 feet) or Cedar City (5,800 feet) feel it. The trail's modest elevation gain (200 feet across two miles each way) becomes meaningful when you're already breathing thin air. Plan on slower pace than the mileage suggests, and bring layers — temperatures at the rim can be 30 degrees cooler than down in the desert basin.
What you're looking at
The Cedar Breaks amphitheater is a 3-mile-wide, 2,000-foot-deep bowl carved into the pink Wasatch Limestone. The same formation builds the hoodoos at Bryce Canyon to the east, but Cedar Breaks shows it at higher elevation, with more recent erosion, and (for now) less visitor traffic. The rock is iron-stained, manganese-stained, and weathered into tight clusters of spires and walls. From the rim viewpoints you can see down into the bowl with the Virgin River drainage extending in the distance toward Zion.
The bristlecones
The Spectra Point spur off the main rim trail leads to a stand of bristlecone pines, some of them over 1,500 years old. Bristlecones are slow-growing, tortuous, and often found at the edge of where trees can grow at all — Cedar Breaks's bristlecones are at the upper edge of their range and grow as gnarled, wind-twisted forms. The Spectra Point bristlecones are accessible via a 2-mile round-trip extension off the main rim trail and are one of the more interesting plant-community stops in the monument.
When to go
The road in (UT-148) closes for winter most years from late October until late May, sometimes longer. The trail is officially open year-round but is functionally a summer-and-fall hike. July, August, and September are the comfortable months. June often still has lingering snowdrifts on shaded sections of the trail. Wildflowers peak in late July and early August — Cedar Breaks's alpine-meadow wildflower bloom is one of the better in southern Utah.
What grows here
Engelmann spruce, subalpine fir, and the bristlecones in the harsher exposed areas. Below the rim, the wildflower meadows are dense in summer with Indian paintbrush, lupine, columbine, and several penstemon species. The monument is small enough that you can walk through several distinct vegetation communities in a few hours.
Wildlife
Mule deer are common; pikas live in the talus slopes below the rim and are visible from the trail with patience. Marmots are present but skittish. Golden eagles soar over the bowl most days. The monument is also a designated International Dark Sky Park, with summer ranger programs that include night-sky observations from the rim.
Where it fits
Cedar Breaks Rim Trail is the trail you do on a summer day when the desert is too hot. From St. George it's a 90-minute drive (north on I-15 to Parowan, east on UT-143, then UT-148 south), and the temperature drop alone justifies the trip. From Cedar City it's 45 minutes. The monument is small enough that you can do the rim trail and the bristlecones in a half-day, with the option to extend into Brian Head for lunch or up to Navajo Lake for an overnight. One of three Markagunt Plateau hikes that locals do as the summer-cool-down rotation.