The last snowmelt drains from Talkeetna's spruce-lined trails by late May, yet the sled dogs of the Mat-Su Valley never stop running. Summer dog sledding in Talkeetna and neighboring Willow relies on dryland mushing, a wheeled-sled discipline that predates the Iditarod itself. Mushers train their teams year-round on purpose-built rigs outfitted with pneumatic tires, shock-absorbing frames, and hand brakes, allowing the athletes to maintain conditioning through Alaska's brief but luminous summer months. The practice originated in Scandinavia during the 1970s, migrating to Alaska as competitive mushers sought methods to keep their dogs race-ready between snow seasons. Today, dryland mushing has evolved into a visitor experience in its own right, offering a window into the daily rhythm of professional kennel operations. Talkeetna dog sledding summer tours center on kennels operated by Iditarod veterans, many of whom have completed the 1,000-mile race multiple times. Dallas Seavey, a six-time Iditarod champion, runs one such operation, opening his training facility to visitors who ride behind rotating teams of Alaskan huskies along forested trails that parallel the Susitna River. The dogs pull with the same intensity they bring to winter races, their gait syncopated by the hum of tires over gravel. Guides narrate the logistics of long-distance racing—caloric intake, paw care, the temperament traits that distinguish lead dogs from wheel dogs—while the sled accelerates through stands of paper birch and black spruce. The kennel visits themselves reveal the infrastructure behind Alaska's most storied sporting event. Visitors walk among dog yards housing 40 to 60 huskies, each tethered to an individual house and eager for attention. Puppies born in spring tumble over one another in communal pens, their lineage traceable to champions from decades past. Mushers demonstrate harness construction, explain the caloric density of the salmon-and-beef slurry fed to working dogs, and answer questions about trail strategy and the psychological endurance required to navigate whiteout conditions at 30 below zero. The tours operate daily from May through September, when temperatures remain cool enough for sustained canine exertion. Morning departures between 9:00 and noon capture the dogs at peak energy, before midday heat slows their pace. The experience unfolds against a backdrop of Denali's south face, visible on clear days as a serrated white horizon 60 miles northwest.