Mysterious ancestral Puebloan stone towers on remote canyon rims.
Photo: HJPD · CC BY 3.0 · via Wikimedia Commons
On the remote Utah–Colorado border in the Four Corners region, ancestral Puebloan builders raised something unusual: tall stone towers — square, round, oval, and D-shaped — perched on canyon rims and balanced on boulders around the springs at the heads of small canyons. Hovenweep National Monument protects six of these village clusters, built around 1200–1300 AD, in a starkly beautiful high-desert landscape with some of the darkest skies in the country.
The main, most accessible cluster is the Square Tower Group at the visitor center, a remarkable concentration of structures — Hovenweep Castle, Square Tower, the Twin Towers — ringing a canyon head, seen on a ~2-mile rim loop. The towers' purpose is still debated: defense, food storage, monitoring the precious springs, astronomy, or ceremony (Hovenweep Castle even has solar-alignment openings). Five more remote outlier groups reward the adventurous with dirt roads and short hikes.
It's remote — fuel up and bring water, as there's no shade and no services. This is high desert (~5,200 feet) with hot, dry summers, July–August monsoon storms, and cold snowy winters, so spring and fall are ideal. As a certified International Dark Sky Park (the first to span two states), it's superb for stargazing. Base in Cortez (near Mesa Verde) or Blanding.
The most concentrated, accessible cluster — Hovenweep Castle, Square Tower, Twin Towers, and more ringing the head of a small canyon, seen from the rim.
Insider tipWalk the ~2-mile Square Tower Loop (moderate, 1.5–2 hrs); a short paved overlook path reaches a canyon-rim viewpoint in minutes for those short on time.
Plan a trip to this spot →A large, multi-story tower complex on the canyon rim — a signature structure with small port openings aligned to the solstice and equinox sun.
Insider tipGo near sunrise or sunset for the best light and the solar-alignment story.
Plan a trip to this spot →Square, round, oval, and D-shaped towers of finely shaped stone, some balanced on boulders or rim edges — purpose still debated (defense, storage, astronomy, or ceremony).
Insider tipNote how the towers cluster around the canyon-head springs — water was the reason people settled here.
Plan a trip to this spot →Five more remote clusters — Holly, Horseshoe/Hackberry, Cutthroat Castle, and Cajon — 4–9+ miles out via dirt roads and short hikes.
Insider tipHolly and Horseshoe/Hackberry are the most doable; Cutthroat and Cajon need high-clearance/4WD. Get road conditions and a map at the visitor center first.
Plan a trip to this spot →Orientation, exhibits on ancestral Puebloan culture, restrooms, year-round water, and the trailhead for the Square Tower Loop.
Insider tipStop here first — pay the fee, get reliable directions to the outliers (GPS misleads here), and check road and weather conditions.
Plan a trip to this spot →A certified International Dark Sky Park (the first to span two states) — extremely dark, remote skies and a vivid Milky Way.
Insider tipStay at the campground or stargaze from the parking area after closing; rangers run astronomy talks spring through fall. New-moon nights are best.
Plan a trip to this spot →High desert at ~5,200 feet with big day-night swings (40–50°F is common): hot, dry early summer (June driest), a July–August monsoon with afternoon thunderstorms and lightning, and cold, snowy winters. Little to no shade on the trails — sun exposure is the main hazard, and it's remote with no nearby services. Best spring and fall.
Remote, on the UT–CO border — fuel up and bring water.
About 1 hour west of Cortez, CO (and ~1 hour from Mesa Verde) on mostly paved roads. $20/vehicle. The Square Tower loop is the main hike; outlier groups need dirt roads and maps. Don't trust GPS — follow the brown signs. Remote: fuel up and bring water.
A small campground at the monument; lodging in Cortez/Blanding.
A small year-round campground (~31 sites) near the visitor center, most sites with shade structures and flush toilets (no showers).
Booking tipNo lodge in the park; verify current reservation policy.
Cortez, CO (~1 hr, near Mesa Verde) is the largest hub for hotels and dining; Blanding/Bluff, UT are options to the west.
Booking tipCortez pairs Hovenweep with Mesa Verde.
Is there an entrance fee?
Yes — $20 per private vehicle ($15 motorcycle, $10 per person), valid 7 days. America the Beautiful passes are accepted.
What's the main thing to do?
The Square Tower Group at the visitor center — the largest, most accessible cluster of towers — on the ~2-mile rim loop (moderate, 1.5–2 hrs). A short paved path reaches an overlook for those short on time.
What are the towers, and why are they here?
Ancestral Puebloan stone towers (square, round, D-shaped) built ~1200–1300 AD around canyon-head springs. Their exact purpose is unknown — theories include defense, storage, astronomy, and ceremony.
Can I visit the outlier groups?
Yes — Holly, Horseshoe/Hackberry, Cutthroat Castle, and Cajon sit 4–9+ miles out via dirt roads and short hikes; some need high-clearance/4WD. Get road conditions and a map at the visitor center first.
Is it good for stargazing?
Excellent — a certified International Dark Sky Park with superb Milky Way views; rangers offer astronomy programs spring–fall.
How remote is it?
Very — fuel up and carry plenty of water, expect spotty cell service, little shade, and summer heat plus afternoon monsoon storms. Best visited spring and fall.
Pick your vehicle, line up the stops on the way in and out, and carry the whole route in your pocket.
