Cedar Grove is at the bottom of Kings Canyon, a deep, glacier-carved trench in the Sierra Nevada that John Muir compared to Yosemite, and it feels like the end of the world in the best sense. The road runs out a few miles beyond, at a place called Road's End, where the Kings River rolls past and trails lead into some of the wildest country in the lower forty-eight. The valley floor is at about forty-six hundred feet, framed by granite walls that rise thousands of feet, and the air smells of pine and river water.
The canyon walls are among the highest in North America, with the rim rising far above the floor, and the combination of scale and quiet is humbling. Zumwalt Meadow, a green lawn along the river beneath a sheer granite cliff, makes a lovely short walk, and Roaring River Falls, close to the road, throws up spray in early summer. Black bears wander the valley, and it is important to keep food locked away. The Kings River, fed by snowmelt, is cold and fast.
The road in is the highlight. Highway 180 descends from Grant Grove into the canyon in a long sequence of curves, with sweeping views of the river far below and the high peaks beyond. The surface is generally good, but the road is narrow in places, there are steep drop-offs, and rock falls can occur. Because of heavy snow, the road is closed in winter, usually from November until April or May, and the facilities at Cedar Grove operate only in the warmer months. Check conditions before you go.
It is a long way to anywhere else, and mobile coverage is poor. Be prepared for summer heat on the valley floor, with cool nights, and carry water. Late September and early October are a lovely time, with cool air, golden light and fewer visitors. Take it easy on the road, since wildlife and cyclists are about.