Red Spa

Red Spa sits on South Mill Street in downtown Aspen, a compact day spa built around six core treatments rather than a long menu of add-ons. It's run by Colleen Delia, a licensed cosmetologist and esthetician with more than 30 years in the trade and licenses in both New York and Colorado.

This is a treatment-based spa, not a day-pass facility — there's no soaking pool or lounge area to pay into for the day. Instead, the model is straightforward: pick a service, book or walk in, and head out again once it's done. Walk-ins are welcomed, which suits visitors who decide on a whim between ski runs or shopping on Mill Street that a facial or massage sounds good.

The spa keeps adult-focused hours typical of a working business rather than a resort: weekdays from 9am to 6pm, a shorter Saturday from 10am to 4pm, and closed Sundays. With only six treatments on offer, the focus seems to be depth over breadth — the kind of place where the same practitioner handles your service rather than a rotating roster of staff. Anyone looking for Aspen's bathhouse-and-soak scene should look elsewhere; Red Spa is squarely in the facial, massage and esthetics category.