Date & Time: Sunday, April 26, 2026 · 7:45AM

Location: Franklin Mountains State Park

Meet-up Location: Smugglers Pass Unit, Franklin Mountains State Park, Mammoths Trunk Trail, El Paso, TX 79904

Join us for a challenging and rewarding hike to Mammoth Rock, one of the Franklin Mountains’ most striking limestone formations. This out-and-back hike offers participants the opportunity to explore how erosion, uplift, and long-term geologic processes have shaped the dramatic desert landscape visible throughout the park. As we navigate rocky trails with sustained elevation gain, participants will learn about limestone geology, erosion patterns, and the desert ecosystems that persist in this rugged environment. Along the way, we’ll pause to examine rock features, discuss landscape formation, and connect visible landforms to the broader geologic history of the Franklin Mountains.

This hike provides a strong physical workout and is best suited for teens and adults who are comfortable hiking longer distances on uneven terrain. The effort is rewarded with expansive views across the surrounding desert and opportunities for photography, reflection, and deeper appreciation of the region’s natural history.

Distance: ~4 miles out and back

Duration: 3 hours

Difficulty: Moderate, Trails are rocky and include elevation gain; participants should be prepared for sustained hiking in desert conditions.

Best for: Teens and adults.

Bring: Sturdy hiking shoes, water, sun protection, snacks, and a small backpack

Trip Lead: Lexi Dominguez, Contact: 915-873-7323