Upstate California spans the rugged, wild northeastern corner of the state — eight counties covering 20 percent of California yet home to some of its most uncrowded trails and untouched landscapes. For DogTrekkers, this region is a paradise of pet-friendly outdoor adventure. Hike through volcanic terrain at Lassen Volcanic National Park, explore the lava tubes at Lava Beds National Monument, or take your dog along forested trails in the shadow of Mount Shasta.

The region is anchored by Redding and Chico, both with thriving dog-friendly dining scenes and easy access to world-class waterways. Shasta Lake and the Sacramento River offer swimming and shoreline walks, while smaller mountain towns like Dunsmuir, Mount Shasta, Chester, and Susanville serve as base camps for Sierra and Cascade adventures. Often called "The Greatest Hidden Gem in America," Upstate California rewards DogTrekkers with fewer crowds, dramatic scenery, and a genuine welcome for four-legged travelers.