Where on earth
Satellite imagery flying in from a world view to San Pedro Parks Wilderness: Vacas Trail Loop, United States. Use the + / − buttons, or click the map to zoom with your scroll wheel; drag to pan and pinch to zoom on touch.
- Region
- Southwest
- Country
- United States
- Trip length
- 2-3 days, 14-20 miles depending on loop choice
- Backpacking
- Hiking
- Fishing
- Hunting
- Climbing
- Mountaineering
- Desert Hiking
- Canyoneering
Key takeaways
- Trip length: 2-3 days, 14-20 miles depending on loop choice
- Top activity: backpacking
Topic summary
High-elevation plateau backpacking across boggy alpine meadows in northern New Mexico.
Intended uses
backpacking
Verification notes
Last verified October 15, 2026.
Tools for a trip here
Picked for how, when and where you're going. Free, no signup.
- Sleep System Temp CalculatorCold nights: check your bag and pad add up to a safe sleep.
- Base Weight CalculatorEvery ounce is carried — total your kit and find your base weight.
- Pack Volume SizerSize the pack for your trip length and season.
- Water Purification MatrixTreat water from streams and lakes on trail.
- Layering CalculatorCold-season miles: layer for climbs and camp.
Plan with verified data
San Pedro Parks Wilderness: Vacas Trail Loop trip tools
How to get there
Take NM State Highway 126 to Forest Road 70, then continue to the Vacas Trail/San Gregorio Lake Trailhead #51. Trailhead coordinates are 36.02715234, -106.84681197. Confirm current road and trailhead conditions with the Cuba Ranger Station.
- Vacas Trail/San Gregorio Lake Trailhead #51
The road-access starting point on FR 70 sits at 9,300 feet, with a 10–15-car parking lot and a vault toilet. No potable water is available. Day use is $5 per vehicle per day.
- San Gregorio Reservoir
An on-trail waypoint about a mile from the trailhead, reached on foot or horseback rather than a separate road-access trailhead. Use it as a turnaround or continue along Vacas Trail toward the interior junctions.
Sources: fs.usda.gov · Wikipedia · Wikivoyage. Confirm road and trailhead conditions with the managing agency before you leave.
Popular pursuits at San Pedro Parks Wilderness: Vacas Trail Loop
- Backpacking
Multi-day travel with everything on your back — see the packing blocks below.
- Hiking
Day miles on marked trail, with route notes and trail links below.
- Fishing
Resident gamefish, seasons, and the water that holds them.
- Hunting
Seasons, tags, and the units that hold animals.
- Climbing
Rock and alpine lines with approach beta.
- Mountaineering
Glacier and high-route objectives with real consequence.
Animals around San Pedro Parks Wilderness: Vacas Trail Loop
Maps, GPS & compass for this trip
Carry a waterproof paper map and a compass you can steer by, and treat the GPS as the backup — not the other way round. Buying links go to Amazon; Wild10 earns a commission at no cost to you.
Waterproof topo maps
- Waterproof topographic map — San Pedro Parks Wilderness: Vacas Trail LoopAmazon search for waterproof, tear-resistant topo maps covering this area.
- National Geographic Trails IllustratedThe waterproof Trails Illustrated series — check for a sheet covering this area.
- Waterproof map case & compass lanyardKeep a paper map readable in rain, spray and a swamped boat.
Fishing at San Pedro Parks Wilderness: Vacas Trail Loop
Planning to fish San Pedro Parks Wilderness: Vacas Trail Loop, Southwest? Fishing licences, open seasons and catch limits in Southwest are set by the local wildlife authority and change every year — check the official source before you cast a line.
Do I need a fishing licence at San Pedro Parks Wilderness: Vacas Trail Loop?
- A Southwest fishing licence is normally required for anyone over the local youth age.
- Read the current Southwest fishing regulations for special waters, barbless-hook or catch-and-release rules.
- Clean, drain and dry boats and gear between waters to stop invasive species.
- San Pedro Parks Wilderness: Vacas Trail Loop may add its own fishing rules on top of Southwest law — check the managing agency too.
We don't have a verified licensing link on file for Southwest yet — contact the park or land manager listed on this page for current hunting and fishing rules.
Hunting near San Pedro Parks Wilderness: Vacas Trail Loop
Thinking about hunting San Pedro Parks Wilderness: Vacas Trail Loop, Southwest? Hunting seasons, tags and draws in Southwest are set by the wildlife authority each year. Confirm the rules for your species and unit before you go.
Is hunting allowed at San Pedro Parks Wilderness: Vacas Trail Loop?
- Hunting is prohibited or heavily restricted in many national parks, wilderness and protected areas — confirm with the San Pedro Parks Wilderness: Vacas Trail Loop land manager before planning a hunt, and look to surrounding public land.
What do I need to hunt in Southwest?
- A Southwest hunting licence — most jurisdictions also require hunter education certification.
- Species tags or draw results for big game such as deer, elk, moose or bear where they occur.
- Knowledge of firearm and bow transport rules, which differ by land type and border crossing.
We don't have a verified licensing link on file for Southwest yet — contact the park or land manager listed on this page for current hunting and fishing rules.
High forest and grassy parks
San Pedro Parks Wilderness occupies 41,132 acres of northern New Mexico’s Santa Fe National Forest. Its defining terrain is conifer forest broken by grassy meadows known as parks, rather than a continuous run of exposed summits. Elevations range from 8,300 feet in the southwestern corner to 10,592 feet at San Pedro Peaks, with an average above 10,000 feet. The Vacas Trail approach starts at 9,300 feet and climbs gradually through mostly spruce vegetation, with occasional openings. That combination makes elevation an important consideration even where the walking is not steep. Allow time to adjust, carry layers for changing high-country weather, and set a pace that leaves room for the return. Hiking, camping, fishing, and horseback riding are ways to explore this landscape.
Planning a Vacas Trail outing
Vacas Trail #51 provides a straightforward approach to San Gregorio Reservoir and a longer passage toward San Pedro Park. The reservoir is about a mile from the trailhead, making it a useful turnaround for a shorter outing. Beyond it, the trail continues approximately four miles to Palomas Trail #50, then reaches the terminus of Anastacio Trail #435 about a quarter mile farther on. The terminus of Penas Negras Trail #32 comes about 2.5 miles after that, followed by San Pedro Park about a half mile farther. These junctions offer route-planning landmarks, but a connected loop requires a separate, verified itinerary. Carry a detailed trail map rather than assuming the named trails reconnect conveniently. An out-and-back on Vacas keeps the route choice simpler while still reaching forest, water, and meadow country.
Trailhead logistics and wilderness travel
The Vacas Trail/San Gregorio Lake Trailhead has parking for 10–15 cars and one vault toilet, but no potable water. Bring drinking water for the start and a treatment method if drawing from natural sources; water is abundant along the trail, not supplied as treated drinking water. Day use costs $5 per vehicle per day. For app payment, download Recreation.gov and sign in before arriving; payment through the app can work without cellular service. Confirm current access conditions and any permit requirements with the Cuba Ranger Station before departure. Motorized and mechanized use is prohibited within the wilderness. Keep meadow and waterside stops low-impact, pack out waste, and prepare for changing weather at elevation rather than treating the gradual climb as a low-country walk.
Route options
- Vacas Trail to San Gregorio ReservoirAbout 1 mile from the trailhead to the reservoir.Gradual climbing at high elevation.
Follow the gradual climb from the trailhead through mostly spruce forest to the reservoir, then return the same way. This is the shorter option for exploring the Vacas approach.
- Vacas Trail toward San Pedro ParkLonger high-elevation outing with a gradual approach.
Continue beyond San Gregorio Reservoir to Palomas Trail #50, then pass the termini of Anastacio Trail #435 and Penas Negras Trail #32 before reaching San Pedro Park. Plan a return along Vacas unless a connecting itinerary has been verified with a detailed trail map.
Sample itineraries
- San Gregorio Reservoir day hike · 1 day
Start at San Gregorio Lake Trailhead #51 and follow Vacas Trail toward San Gregorio Reservoir, about a mile away. The climb is gradual through mostly spruce vegetation with occasional openings. Return the same way for a short introduction to the wilderness.
- Vacas Trail to San Pedro Park overnight · 2 days
Follow Vacas Trail past San Gregorio Reservoir and the Palomas #50, Anastacio #435, and Penas Negras #32 junctions toward San Pedro Park. Split the out-and-back over two days, confirming camping requirements with Cuba Ranger Station. Carry overnight equipment for high-elevation conditions; this itinerary does not assume a loop connection.
Seasonal conditions
Spring
Spring; confirm road and trail conditions before departure
The trailhead sits at 9,300 feet, so plan conservatively for lingering snow, wet ground, and cold weather. Confirm access along NM SH 126 and FR 70 rather than assuming the trailhead is accessible.
Summer
Summer; check current weather and access
Expect a high-elevation trip rather than desert conditions. Spruce forest provides cover along much of Vacas Trail, with occasional openings and grassy parks farther into the wilderness. Carry rain protection and warm layers even for a short reservoir hike.
Fall
Fall; check the forecast before departure
Prepare for cold conditions at a trailhead elevation of 9,300 feet and higher terrain beyond. Shorter daylight makes an early start useful for longer outings toward San Pedro Park. Hunting occurs in the wilderness; consider wearing highly visible clothing.
Winter
Winter; verify access before committing
Treat this as a high-elevation winter outing, with potential snow and freezing conditions. Confirm road access and trailhead status with Cuba Ranger Station. Do not assume the gradual summer hiking grade makes winter travel straightforward.
| Season | Window | Conditions |
|---|---|---|
| Spring | Spring; confirm road and trail conditions before departure | The trailhead sits at 9,300 feet, so plan conservatively for lingering snow, wet ground, and cold weather. Confirm access along NM SH 126 and FR 70 rather than assuming the trailhead is accessible. |
| Summer | Summer; check current weather and access | Expect a high-elevation trip rather than desert conditions. Spruce forest provides cover along much of Vacas Trail, with occasional openings and grassy parks farther into the wilderness. Carry rain protection and warm layers even for a short reservoir hike. |
| Fall | Fall; check the forecast before departure | Prepare for cold conditions at a trailhead elevation of 9,300 feet and higher terrain beyond. Shorter daylight makes an early start useful for longer outings toward San Pedro Park. Hunting occurs in the wilderness; consider wearing highly visible clothing. |
| Winter | Winter; verify access before committing | Treat this as a high-elevation winter outing, with potential snow and freezing conditions. Confirm road access and trailhead status with Cuba Ranger Station. Do not assume the gradual summer hiking grade makes winter travel straightforward. |
Permits, fees & closures
Confirm wilderness permit and camping requirements with Cuba Ranger Station at (575) 289-3264. Motorized and mechanized use is prohibited in the wilderness.
Fees: San Gregorio Trailhead day use costs $5 per vehicle per day. Download the Recreation.gov app and sign in before arriving; payment through the app is available without cellular service.
Official source: Vacas Trail/San Gregorio Lake Trailhead #51 - USDA Forest Service · Verified October 15, 2026
Hazards & regulations
- High elevation: the trailhead is at 9,300 feet, and the wilderness averages above 10,000 feet. Pace the climb conservatively and turn back if altitude symptoms develop.
- Untreated water: water is abundant along Vacas Trail, but potable water is not available at the trailhead. Carry drinking water and treatment equipment.
- Cold and changing weather: high-elevation forest and open parks call for insulation and weather protection, including on day hikes.
- Navigation at junctions: Vacas Trail meets Palomas #50, Anastacio #435, and Penas Negras #32. Carry a map and verify the intended route rather than assuming these junctions form a loop.
What to pack for San Pedro Parks Wilderness: Vacas Trail Loop
- Trail map showing Vacas Trail and its numbered junctions
- Offline navigation and backup power
- Recreation.gov app downloaded and signed in
- Headlamp
- Drinking water for the start
- Water filter or other treatment
- Refillable bottles
- Food and extra snacks
- Insulating layer
- Rain shell
- Warm hat and gloves
- Footwear suited to wet ground
- Shelter
- Sleeping bag suited to the forecast
- Insulated sleeping pad
- First-aid kit
San Pedro Parks Wilderness: Vacas Trail Loop FAQ
- Where is the trailhead, and how is it reached?
- San Gregorio Lake Trailhead #51 serves Vacas Trail in New Mexico's Santa Fe National Forest. Follow NM SH 126 to FR 70, then continue to the trailhead. Coordinates are 36.02715234, -106.84681197.
- What facilities are available?
- The trailhead has a parking lot accommodating 10–15 cars and one vault toilet. There is no potable water. Bring drinking water even though water is abundant farther along the trail.
- Is this a confirmed loop itinerary?
- Use the itineraries here as out-and-back options. Before attempting a Vacas Trail loop, confirm the connecting route and current trail conditions with Cuba Ranger Station. The named junctions alone do not establish a complete loop.
- How far apart are the main landmarks?
- San Gregorio Reservoir is about a mile from the trailhead. From there, Palomas #50 is approximately 4 miles farther; Anastacio #435 follows in about a quarter mile. Penas Negras #32 is another roughly 2.5 miles, with San Pedro Park about a half mile beyond.
- What is the terrain like?
- Vacas Trail climbs gradually through mostly spruce vegetation with occasional openings. The broader wilderness combines conifer forest and grassy meadows called parks. Its elevations range from 8,300 feet to 10,592 feet at San Pedro Peaks.
- Are bicycles or motorized vehicles allowed in the wilderness?
- No. Motorized and mechanized use is prohibited in San Pedro Parks Wilderness. Hiking and horseback riding are recreation options at this access point.