La Colorada Park to Pico Negro

The La Colorada Park to Pico Negro route is a long backcountry trek within the Sierra de Álamos-Río Cuchujaqui Biosphere Reserve near Álamos, Sonora. Access begins at the La Colorada Park entrance, reachable by car or taxi from central Álamos in about 15 minutes; hikers should check in at the entrance before starting, since the route lies within a protected biosphere reserve. The round trip covers approximately 21 kilometers with about 1,400 meters of cumulative elevation gain, and most hikers need 6 to 8 hours to complete it, making an early start essential. The lower trail winds through tropical deciduous forest on a mix of dirt and rocky footing, gradually climbing into pine-oak woodland at higher elevation where the surface becomes looser and rockier, with some short scrambling sections near the top. There is limited shade in the lower forest and almost none on the exposed upper ridge. A prominent ridge below the final approach to Pico Negro offers strong views and serves as a sensible turn-around point if time or daylight runs short. There are no reliable water sources, huts, or shelter anywhere along the route, so hikers must carry all the water, food, and navigation aids they will need for the full day. Given the length and remoteness of the trek, a GPS track or detailed map is important, since junctions in the upper forest are not always clearly marked.