Guaje Ridge/Perimeter Loop

While specific parking areas for the Guaje Ridge/Perimeter Loop aren't detailed, trailheads in the Los Alamos area, such as those near Pajarito Ski Area or along the Perimeter Trail, typically offer parking. Given that navigation can be tricky and entry points might not be clearly signed, it's recommended to use a reliable navigation tool to find the most convenient trailhead parking for your starting point.

Generally, there are no specific permits or fees required for day-use access to trails like the Guaje Ridge/Perimeter Loop within the Santa Fe National Forest. However, it's always a good idea to check the official Santa Fe National Forest website for any current regulations or alerts before your visit.

The terrain is diverse and challenging, characterized by a mix of singletrack and wider paths. You'll encounter uneven surfaces with small rocks, roots, and potentially sizable rocks and steep sections. Some parts may also have challenging sand and gravel. The Guaje Ridge Trail section is primarily a downhill singletrack, while the Mitchell Trail is known for being very steep and switchbacking.

This loop is rated as 'difficult' for jogging. The Guaje Ridge Trail section alone involves a significant elevation descent of about 2,121 feet over 6.1 miles, with some climbing. The varied and often uneven terrain, combined with steep sections, makes it physically demanding and best suited for experienced trail runners.

The full Guaje Ridge/Perimeter Loop, which covers approximately 17.3 kilometers (10.7 miles), typically takes around 2 hours and 17 minutes to jog. This duration can vary significantly based on your fitness level, the specific route taken, and how often you stop to enjoy the views.

You can expect scenic views as the trail traverses ridges north of Los Alamos. There are opportunities to see wildflowers and wildlife. Parts of the trail pass through areas affected by past fires, offering a unique, stark landscape in some sections, while others feature surprisingly lush plant life. The Perimeter Trail section specifically offers views overlooking canyons.

Yes, dogs are allowed on the Guaje Ridge trail and generally on trails within the Santa Fe National Forest. Please ensure your dog is on a leash and you follow all Leave No Trace principles, including packing out all waste.

Spring and fall are generally the best times to jog this loop, offering more moderate temperatures. Summer can be very hot, and sections of the trail affected by burns may lack shade, making hydration crucial. Late summer/early fall, especially after monsoons, can lead to overgrowth, particularly of 'locust thorn bushes,' which might make some parts of the trail less pleasant.

Yes, the route is part of a larger trail system and intersects with several other paths. You'll find sections that overlap with the Mitchell Trail, Guaje Ridge Trail, Cabra Loop Trail, and the Perimeter Trail. It can also be combined with trails like Quemazon and Pipeline for an even longer outing.

Given the trail's difficulty and exposure, essential items include plenty of water, especially during warmer months, appropriate trail running shoes with good grip, sun protection (hat, sunscreen), and navigation tools like a GPS device or a downloaded map. Trekking poles can also be helpful for steep or uneven sections.

Yes, navigation on the Guaje Ridge trail can be tricky. The entry point might not be clearly signed, and there are potential for confusing intersections with other trails. It's highly recommended to use accurate navigation tools, such as a GPS device or a reliable app with offline maps, to stay on track.