Marufo Vega / Ore Terminal Trails

A metal sign with trail information sits beside a dirt path heading into the mountains.

Three brutal backcountry routes into Big Bend's remote interior—Marufo Vega (14mi, 3,800ft), Ore Terminal (8mi, 800ft), and Strawhouse (14mi, 1,600ft)—start from one trailhead on Boquillas Canyon Road. These are not hikes for the unprepared; they demand serious water discipline, trekking poles for rocky scrambles, and an early start. Only hike when temperatures stay below 80°F (late fall through spring).

Quick facts

Distance Miles: 14
Route Type: Loop (Marufo Vega); Out-and-back (Ore Terminal, Strawhouse)
Difficulty Level: Strenuous
Elevation Gain Feet: 3800

Trail profile

Distance Miles: 14
Route Type: Loop (Marufo Vega); Out-and-back (Ore Terminal, Strawhouse)
Difficulty Level: Strenuous
Elevation Gain Feet: 3800
Estimated Time: Marufo Vega: 8-10 hours. Ore Terminal: 5-7 hours. Strawhouse: 7-9 hours.
Trail Surface: Loose pebbles and rocky ground requiring careful foot placement. Steep, exposed terrain on all three routes.
Trail Features: Boquillas Canyon rim paralleling (Marufo Vega loop)
Historic ore tramway route (Ore Terminal)
Dead Horse Mountains ascent
Ernst Valley views
Telephone Canyon connection (Strawhouse)
Trail Highlights: Marufo Vega offers a dramatic loop paralleling the Boquillas Canyon rim with 3,800 feet of cumulative elevation change. Ore Terminal follows a historic ore tramway from the Puerto Rico mine in Mexico to a ridge terminal. Strawhouse connects to Telephone Canyon Trail and provides views into Ernst Valley.

Trailhead & access

Trailhead Location: 2.5 miles down Boquillas Canyon Road from the main park road
Parking Lot Size: Dirt lot with capacity for approximately 5 vehicles
Parking Fill Time: Can fill by mid-morning during peak season (October-April)
Shuttle Required: 0
Shuttle Details: No shuttle service. Personal vehicle required to reach Boquillas Canyon Road.

Permits & conditions

Permit Details: Day hiking does not require permits. Backcountry camping requires a permit.
Fees: $30 per vehicle entrance fee (valid 7 days)
Trail Status: Open
Seasonal Closures: No formal closures, but park recommends against hiking May-September due to extreme heat.

Facilities & rules

Restrooms At Trailhead: 0
Water Sources: Dry trail. Carry all water required for your hike. No reliable water sources on route.
Accessibility: Extremely limited. These trails traverse rocky ground with loose pebbles, large elevation changes, and no maintained switchbacks. Not accessible for hikers with mobility limitations. Trekking poles strongly recommended even for fit hikers.

Safety & strategy

Hazards: Extreme heat and dehydration
Loose, rocky terrain requiring careful foot placement
Large elevation changes and steep grades
Exposure (drop-offs on Marufo Vega rim)
Wildlife (snakes, javelinas, mountain lions)
Minimal cell service
Limited parking (5 vehicles max)
Hazard Details: These trails traverse rocky ground covered in loose pebbles—treacherous footing that demands careful placement. Marufo Vega includes sections paralleling the Boquillas Canyon rim with drop-offs. The desert sun is relentless; heat exhaustion and dehydration are the primary killers. Trekking poles are recommended for balance on descent. Snakes are present and should be avoided.
Cell Service: Unreliable. Expect minimal to no cell coverage.
Crowd Level: Solitary. These remote backcountry trails see minimal traffic.
Peak Crowd Times: Late December through early January (winter holidays), and weekends during October-April.
Best Season: October through April (temperatures below 80°F)
Best Time To Visit: October through April, when daily highs reliably stay below 80°F. Start hiking by 6:00 AM to beat afternoon heat. The NPS explicitly discourages these trails above 80°F.
Tips Advice: Carry 1 liter of water per person per hour of hiking—this is non-negotiable in this desert climate.
Trekking poles are mandatory; loose pebbles and rocky ground require careful foot placement and descent control.
Bring salty snacks (electrolytes); sweat evaporates instantly here, and dehydration sneaks up.
Sunscreen and a wide-brimmed hat are essential. Consider lightweight, breathable long sleeves and pants for sun protection.
Start early (before 6 AM) to maximize cool hours and avoid hiking in peak heat.
If hiking in a group, ensure the slowest person always has a partner.
Make noise and maintain distance from all wildlife (snakes, javelinas, mountain lions).

More details

Park Area: Boquillas Canyon Road area, southeast Big Bend
Trail Markers: Moderately marked, but loose scree and desert terrain require careful navigation. Bring a topo map.
Dogs Allowed: No. Dogs and other pets are not allowed on any trails in Big Bend National Park.
Shade Level: Full sun exposure. Minimal shade. Hat and sunscreen are mandatory.
Emergency Contacts: Big Bend National Park Emergency: Call 911 or contact a ranger at the nearest visitor center. For non-emergencies, contact the park at the main park road.
Map Recommended: 1
Snow Dates: Rare snow at this elevation (desert), but occasional light snow possible December-January.
Mud Season: Not applicable. Desert drainage is rapid.
Wildflower Peak: March to April (desert wildflower bloom)
Fall Colors Peak: Not applicable. Desert habitat.
Bug Season: Minimal insect activity in cool season (October-April). Negligible in peak hiking months.
Insider Tips: The small 5-vehicle parking lot fills up—arrive before 7:00 AM during peak season or risk a long drive back to find overflow parking.
The trail is not a cakewalk; the "false summit" on Marufo Vega can demoralize hikers—budget extra energy for the loop.
Carry a topo map; cell service is unreliable and the terrain is complex.
The Ore Terminal trail is the "shortest and easiest" of the three—a good option if you're new to this area.
Start hydrating the day before, not the morning of; being adequately hydrated before you hike is half the battle.
Recent Updates: No recent trail closures or major maintenance reported as of 2026.
Family Friendly Notes: Not suitable for young children. Loose rocky terrain, steep elevation changes, and extreme heat exposure create serious injury risk. Older teens with strong fitness and heat tolerance may attempt with experienced adults, but hand-holding and constant supervision required on exposed sections.
Nearby Facilities: Nearest supplies and facilities are at Rio Grande Village (gas, store, ranger station), approximately 20 miles south of the trailhead via Boquillas Canyon Road. No water, restrooms, or shade at the trailhead.
Review Summary: Hikers consistently report that these trails are serious backcountry experiences—the elevation gain is relentless, and heat management is the deciding factor. Most say the solitude and views of Boquillas Canyon (especially the Marufo Vega loop) justify the effort, but only for those willing to respect the desert's demands. The Ore Terminal's shorter distance attracts intermediate hikers seeking a less punishing option with historic interest.

Location

Frequently asked questions

Can I do this trail if I'm not a serious backcountry hiker?

Only if you're choosing Ore Terminal and you're fit, heat-acclimated, and hiking October-April. Marufo Vega and Strawhouse are for experienced hikers. These are not beginner-friendly trails—the loose rock, elevation gain, and heat are unforgiving.

Is it safe to hike these trails alone?

Hiking alone in remote desert increases risk. If you do, tell someone your plan and expected return time, carry extra water (1.5x normal), and turn back at the first sign of trouble. Cell service is unreliable, so self-rescue is your backup.

Do I need special gear?

Yes. Trekking poles are strongly recommended (mandatory for descent). A topo map and compass or GPS are essential. Bring a sun hat, sunscreen, and long sleeves. At least 2-3 liters of water per person is non-negotiable.

What's the difference between the three trails?

Ore Terminal (8mi, 800ft) is shortest and least technical. Marufo Vega (14mi, 3,800ft loop) has the most elevation and rim views. Strawhouse (14mi, 1,600ft) is moderate-hard and ends at Telephone Canyon. Choose based on fitness and time.

When is the best time to go?

October through April, when temps stay below 80°F. January-February is ideal (coldest, clearest). Avoid May-September—the heat will overcome you, even experienced hikers.

What if the parking lot is full?

There is no overflow parking. If the 5-vehicle lot is full, return another day. Arrive by 6:30 AM to secure a spot.