Big Arsenic Springs Trail

While the komoot tour data might suggest an 'easy' rating, the Big Arsenic Springs Trail is generally considered difficult due to a strenuous 800-foot climb out of the Rio Grande Gorge. The descent is steep and rocky, and the return ascent is demanding, often requiring breaks. The section along the Rio Grande River at the bottom is relatively flat and easy.

The trail starts at the rim of the Rio Grande Gorge within the Wild Rivers Recreation Area. Parking is available at the trailhead. It's advisable to arrive early, especially during peak seasons, to secure a spot.

Yes, dogs are generally allowed on the trail. However, given the steep and rocky terrain, ensure your dog is capable of handling the hike. Always keep your dog on a leash and pack out any waste.

Spring and fall offer the most pleasant hiking conditions with milder temperatures. Summer can be very hot, and afternoon thunderstorms are common in July and August. Winter (November through March) can bring snow, making sections of the trail challenging or impassable.

The Wild Rivers Recreation Area, where the trail is located, typically has a day-use fee or requires a pass. It's best to check the official Bureau of Land Management (BLM) website for the most current information on fees and passes for the Rio Grande del Norte National Monument.

The trail offers breathtaking panoramic views of the Rio Grande Gorge. As you descend, you'll encounter desert flora and fauna. A major highlight is the tranquil spring oasis at the bottom, the Big Arsenic Trail, and ancient petroglyphs on basalt rocks near the river. You'll also find the Big Arsenic Trail End and Campsites at the river level.

Given the strenuous nature and elevation changes, bring plenty of water and snacks. Sturdy, well-fitted hiking boots with good ankle support are essential due to the rocky and uneven terrain. Walking poles can provide additional support. Layered clothing, a hat, and sunglasses are also recommended. A detailed map or GPS device can be helpful.

While the Big Arsenic Spring is a natural water source, it's crucial to bring your own water. The spring water should be filtered or treated before drinking. Note that as of February 2026, there is no potable water available at the campgrounds in the canyon.

Yes, primitive backcountry campsites are available in the canyon at the bottom of the gorge for those looking for an overnight experience. These sites offer a unique opportunity to immerse yourself in the solitude of the Rio Grande. Remember to practice Leave No Trace principles.

Yes, the route primarily follows the Big Arsenic Trail for about 60% of its length. Once at the bottom of the gorge, it also utilizes sections of the River Trail for approximately 42% of the route.

To make the most of your hike and avoid the midday heat, especially during warmer months, start your descent early in the morning. This allows you to enjoy the cooler temperatures and the tranquility of the gorge before the sun is at its strongest for the challenging climb back out.