New Mexico · National Monument trail

Geology Pueblo Loop Trail Stop 2

in New Mexico · centroid 53 mi from Albuquerque

Frijoles Canyon is carved into a thick layer of volcanic ash that over time compacted into a soft rock known as tuff. This ash was deposited over 1 million years ago in two separate eruptions of the Jemez Volcano, each spewing over 600 times more ash than Mt St Helens in 1980. Tuff is a malleable rock overall and one component within the tuff, pumice, is especially susceptible to erosion by wind and water.

Using this quality of the tuff, Ancestral Pueblo people used harder rock, such as basalt found further down this canyon and under the tuff, to enlarge natural erosional cavities into human excavated openings called cavates (CAVE-eights). You will be able to climb ladders into several of these further down the trail.If you are interested in learning more about this fantastic volcanic geology, visit the Valles Caldera National Preserve located about 40 minutes away on Highway 4. The Preserve protects the collapsed top (caldera) of the Jemez Volcano.

States: New Mexico
Trail type: National Monument trail
Centroid nearest city: Albuquerque, NM · 53 mi · ~1.5 hr drive
Centroid coords: 35.7797°, -106.2716°

About Bandelier National Monument

National Monument

This trail is inside Bandelier National Monument, a national monument managed by the U.S. National Park Service. Conditions, road status, trail closures, and reservation requirements are published on the park's NPS page — check it before driving in, especially in winter or during major weather events.

Entrance fee: $25 per vehicle (verify current rate on the park page). An America the Beautiful annual pass ($80) covers entrance to all NPS units.

Official NPS trail page: https://www.nps.gov/places/pueblo-loop-trail-stop-2.htm

Park homepage: https://www.nps.gov/band/index.htm

Plan your hike

Practical notes

Maps + permits: long-distance trails like this often require permits for through-hiking, backcountry camping, or specific sections (especially in National Parks). Check with the maintaining organisation listed above and the relevant land manager before booking travel.

Water + supplies: water sources vary seasonally on most U.S. trails. Carry a filter and consult current trail-condition reports — through-hiker journals (PCT-L, AT Reddit, etc.) and the maintaining organisation publish regular updates.

When to go: hiking seasons vary widely with elevation, latitude, and snowpack. Through-hikers traditionally start the AT in March-April (Springer northbound) and the PCT in late April (Campo northbound). High-elevation western trails (CDT, JMT, Wonderland) generally aren't passable until July.

If you've hiked Geology Pueblo Loop Trail Stop 2 and have current notes (water sources, trail closures, permit changes), tell us at /contact — we update pages as we learn.

Stay nearby

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Driving in? The nearest documented metro is Albuquerque, NM — 53 miles away (~1.5 hr drive). See accommodation in Albuquerque on Booking.com → RoamFound earns a small commission if you book through this link, at no extra cost to you. How we handle affiliate links.