Overview
Mount Princeton’s signature feature is not a single “main pool,” it’s the variety, especially along the creek. On one part of the property you have developed resort pools and a historic bathhouse feel. In another, you get creekside soaking pools where hot spring water mixes with the creek, creating a more natural, outdoorsy experience without leaving the facility. It’s a rare setup in Colorado: one address, two distinct moods.
If you’re traveling with a mixed group, pay attention to the Spa & Club rules. The resort describes this area as reserved for overnight guests age 16+ and spa treatment patrons, with a calmer, more retreat-like atmosphere. That separation can save your day: families can enjoy the public areas, and adults who want quiet can choose the zone designed for it.
Mount Princeton states swimsuits are required at all times. It’s a straightforward policy that keeps expectations clear, especially for first-time hot spring visitors.
Location & Access
Where it is
Mount Princeton Hot Springs Resort is in Nathrop (15870 County Road 162), in the Arkansas River Valley between Buena Vista and Salida. You’re surrounded by big, open valley views and mountain backdrops, and the drive itself is part of the appeal if you like wide-sky Colorado scenery.
By car
This is a paved-road, arrive-and-park kind of hot spring. You’re not dealing with a forest service access road or a trailhead. Winter weather can still affect mountain highways, so check conditions if you’re driving in snow season, especially after dark when temperatures drop and shaded stretches ice up.
Arrival and day-use planning
Mount Princeton states the hot springs are open to the public daily and that day passes are purchased onsite (not in advance). If you’re visiting during peak weekends, build in a little buffer for lines and changing-room time. If your goal is quiet, arrive earlier and treat the creekside area as a slower-paced soak rather than a “quick dip.”
On-site layout tip
The property is spread out. If mobility or cold-weather transitions are a concern, plan your soak route so you’re not repeatedly walking long distances between areas in wet swimwear.
Suitability & Accessibility
Safety & Etiquette
Heat, altitude, and pacing
Hot water plus Colorado altitude can hit harder than you expect, especially if you arrive after hiking or a long drive. Start with a moderate pool, then decide if you want hotter. Take breaks, drink water, and don’t treat the hottest option as a test of toughness. If you’re pregnant or managing heart or blood-pressure issues, follow medical guidance before soaking.
Slip hazards and creekside terrain
Developed decks get slick. Creekside paths can be wet, uneven, or icy in winter. Move slowly and keep kids within arm’s reach near water edges. Bring footwear with traction and keep it on for transitions between pools.
Swimsuits required and respectful behavior
Mount Princeton states swimsuits are required at all times. Keep the vibe comfortable for everyone by using robes or towels between pools, limiting loud conversations, and giving people space on steps and benches. This is a shared soaking environment, and the “best seat in the pool” is not a permanent lease.
Alcohol and hot water do not mix well
Even where alcohol is available for purchase, be cautious. Hot soaking increases dehydration and can amplify the effects of alcohol. If you do drink, keep it light, drink water, and step out if you feel off.
Photography
Be careful with phones around pools. Avoid photographing other guests, and choose quiet corners if you want a quick landscape shot. Privacy matters more in hot springs than people expect.