You can’t beat geothermal heat. That’s what warms the many hot springs in California, which make a disparate yet tempting bunch, from rustic roadside holes in the ground to luxurious Napa Valley ...

Emily Pennington is a columnist and longtime Outside contributor. For her 63 Parks column, she visited every U.S. national park. As chilly weather approaches and the leaves turn, it’s time to swap out ...

Getting your Trinity Audio player ready... Therapeutic geothermal mineral waters in the Rockies have attracted soakers for centuries, starting with the Utes, who frequently visited them for physical ...

Colorado has what some folks might call liquid assets—the state is home to almost 30 thermal sites where visitors can take a warm, relaxing dip with a scenic mountain backdrop. In fact, there's a ...