The Australian Kelpie was developed in 1870s Australia from Scottish working collies to move Merino sheep across hot, dry country. Lean and prick-eared, with a short, weather-resistant double coat in black, red, blue or fawn, it's built for stamina rather than looks. Shedding is moderate, with heavier seasonal sheds. The breed is still uncommon in the US, so many Kelpie-type dogs adopters meet are mixes.
Kelpies are alert, quick to learn and devoted to their people. Herding drive can show up as heel nipping, circling or chasing bikes and joggers, which matters on a busy trail. Daily running and training are part of the deal. Dogs vary, and a Kelpie mix may carry only part of that intensity. Adopters who enjoy structured activity usually do best.