Picacho del Fraile Trail, Gogorrón National Park

The Picacho del Fraile trail begins inside El Gogorrón National Park, reached by car from San Luis Potosí city via the Villa de Reyes highway; there is no public transport directly to the park entrance, so a private vehicle or taxi is required to reach the trailhead near the park's hot springs and camping area. From there, the route covers about 24 kilometers round trip with a cumulative elevation gain of roughly 1,194 meters to the Picacho del Fraile summit, making it the most demanding hike in the region covered here. The lower stretches cross semi-arid scrub with little shade, giving way to pine-oak slopes higher up that offer intermittent tree cover; sun exposure is significant for much of the day regardless of season. The trail surface is a mix of dirt track and rockier, loose ground on the steeper upper approach to the summit, and is not always well marked, so a map or GPS track is essential. Landmarks along the way include the park's namesake hot springs near the start and sweeping views opening up over the Villa de Reyes valley as the trail gains height; hikers not attempting the full summit often turn around at the first major viewpoint on the upper slopes. There are no water sources or refuge huts along the mountain route itself, so the recommended 3 or more liters of water and food must be carried for the full 8.5-to-9.5-hour day. Given recent drought conditions and a 2024 wildfire that closed sections of the park, current park access and trail conditions should be confirmed before setting out, and an early start is essential to summit and return before dark.