Cathedral Valley is a remote, spectacular district in the northern section of Capitol Reef National Park in Wayne County, Utah. It is renowned for its towering sandstone monoliths, spires, and cliffs that evoke Gothic cathedrals and ancient temples, earning it the name. This high-desert landscape, accessible primarily by high-clearance 4×4 roads, features dramatic erosional forms like the Temples of the Sun, Moon, and Stars, colorful Bentonite Hills, and unique geological curiosities such as Glass Mountain and a gypsum sinkhole. It represents one of the least-visited yet most visually striking areas of the park, highlighting the broader story of the Waterpocket Fold monocline.
Vehicles with high ground clearance are recommended and should have no issues navigating the sandy roads. Road conditions can vary greatly depending on recent weather conditions with spring and summer rains leaving the route muddy and impassable. The advantage of this location is the back country travel is light, so for the person seeking seclusion, this is the secluded area in a remote location.
The 60 miles loop trail leaves highway 24 at the River Ford which is about 12 miles easy of the visitor center. The route follows Hartnet Road to the Cathedral Road ( Caineville Wash Road) and returns to Highway 24 near Caineville. The river crossing is passable most of the time, however care should be taken during the rainy months.
During my visit in 2004, we just finished Hole in the Rock Road, and headed east out of Escalante, Utah. We then took the Burr Trail to Notom Road which delivered us to Capital Reef. That afternoon we chased the light up Cathedral Valley Road and stopped at Temple of the Sun for some photographic opportunities. We stayed beyond sun down hoping for some amazing light which did not come that evening and drove trail out in the dark. I was disappointed for the lack of light during the golden hour, but the location is yet another place that I must return just due to the amazing Utah landscapes.
Cathedral Valley Trail Map
Geological Formation: A Detailed Report
Cathedral Valley’s geology is part of the larger Capitol Reef story, exposing nearly 10,000 feet of sedimentary rock layers spanning from the Permian to Cretaceous periods (about 270 to 80 million years ago). The area’s distinctive monoliths and valley formed through three main phases—deposition, uplift, and erosion—over hundreds of millions of years.
Deposition (Middle to Late Jurassic, ~165–160 Million Years Ago)
During the Middle Jurassic, much of what is now Utah was a coastal plain near a shallow inland sea. Extensive tidal flats, barrier islands, sand bars, and sabkhas (evaporative flats) dominated the environment.
- Carmel Formation (~165 million years ago): Thick layers of gypsum and other evaporites formed as seawater evaporated in restricted basins. This low-density gypsum later played a key role in unusual features.
- Entrada Sandstone (~160 million years ago): The primary rock of the “cathedrals.” This 400–900-foot-thick formation consists of fine-grained, reddish-orange sandstone and siltstone (colored by hematite/iron oxides). It was deposited as sandy mud on tidal flats. The rock is relatively soft and crumbly, eroding easily into sheer cliffs without prominent talus slopes.
- Curtis Formation (overlying the Entrada): A thinner (0–175 feet), resistant layer of grayish-green marine sandstone and siltstone (with glauconite). It acts as a protective caprock on many monoliths and buttes.
- Summerville Formation: Thinly bedded reddish-brown siltstone above the Curtis.
- Morrison Formation (Brushy Basin Member): Later Jurassic deposits of mud, silt, sand, and volcanic ash in swamps and lakes. Volcanic ash altered into bentonite clay, creating the colorful, banded Bentonite Hills (browns, reds, purples, grays, greens). Bentonite becomes extremely slick and gummy when wet, complicating travel.
These layers were originally buried under thousands of feet of younger sediment.
Uplift: The Waterpocket Fold and Laramide Orogeny (~70–50 Million Years Ago)
About 50–70 million years ago, during the Laramide Orogeny (a major mountain-building event in western North America), tectonic forces reactivated an ancient Precambrian fault. This created the Waterpocket Fold—a 100-mile-long monocline (a step-like fold in the rock layers). In Cathedral Valley, the layers dip gently eastward at only 3–5 degrees, appearing nearly horizontal (unlike the steeper exposures elsewhere in the park).
The west side of the fold was uplifted more than 7,000 feet relative to the east. Later regional uplift of the Colorado Plateau (starting ~15–20 million years ago) further exposed the strata. This set the stage for erosion to carve the modern landscape.
Erosion and Sculpting of the Landscape (~20 Million Years Ago to Present)
Erosion intensified over the last 15–20 million years (and especially 1–6 million years ago), driven primarily by water (flash floods, streams, and groundwater), freeze-thaw cycles, and gravity. Wind plays a minor role. Approximately 7,000 feet of overlying rock has been removed.
- Monoliths and Cathedrals: Fractures and joints in the Entrada Sandstone (formed during uplift and pressure release) created zones of weakness. Water infiltrated these joints, accelerating chemical and mechanical weathering. Softer, fractured rock eroded away, leaving resistant, unfractured masses as free-standing monoliths or “temples” (e.g., Temples of the Sun and Moon). In Lower Cathedral Valley, the Curtis caprock has largely eroded away, producing steeple-like shapes; elsewhere, it protects taller formations.
- Glass Mountain: A rare “gypsum plug” of large selenite crystals (clear gypsum, CaSO₄·2H₂O). Groundwater dissolved gypsum from the Carmel Formation and redeposited it within fractures in the Entrada Sandstone, forming a dome-like mass that is now exposed as surrounding rock erodes. It rises about 15 feet above the valley floor.
- Gypsum Sinkhole: The opposite process—a buried gypsum plug dissolved by groundwater, creating a cavity that collapsed into a ~50-foot-wide, 200-foot-deep sinkhole.
- Volcanic Features (3–6 million years ago, with some basalt boulders ~20 million years old): Molten lava intruded as dikes (vertical) and sills (horizontal) into sedimentary layers. These dark, resistant igneous rocks now stand out as ridges. Black basalt boulders scattered across the landscape originated from lava flows on nearby Boulder and Thousand Lake Mountains and were transported by glaciers, mudslides, and erosion during the Ice Age.
The result is a landscape of sheer cliffs, isolated monoliths rising hundreds of feet, and badlands-like badlands sculpted from soft Entrada rock—dramatically different from the Waterpocket Fold’s other sections.
Human History
Human presence in Cathedral Valley has been limited by its remoteness and harsh terrain, but it reflects broader patterns in southern Utah.
- Prehistoric and Native American Use: The broader Capitol Reef region was inhabited by Archaic hunter-gatherers and later the Fremont Culture (related to Ancestral Puebloans, ~A.D. 300–1300), who left petroglyphs, tools, and farming evidence elsewhere in the park. Cathedral Valley itself has fewer documented sites due to its isolation, though occasional artifacts and use for hunting or seasonal travel likely occurred. Later Paiute, Ute, and Navajo peoples traversed the area.
- Early Exploration and Settlement (19th Century): Spanish explorers, trappers, and the 1853 Fremont expedition passed through southern Utah, but Cathedral Valley remained largely unknown. Mormon pioneers settled nearby valleys in the late 1800s, using the region for grazing.
- Ranching Era (Early 20th Century): Around 1900, local cattlemen built the Cathedral Valley Corral (one of the oldest ranching structures in the park) using a natural sandstone alcove and cliffs, with wooden fences and a cattle chute. Families like the Jefferys and Morrells used it for branding, vaccinating, and managing livestock on the open range. This period saw heavy grazing that impacted vegetation. An old ranch well (with trough, trees, and abandoned equipment) and the Morrell Cabin (a historic structure on the valley floor) also date to this era. Extensive open-range practices eventually led to overgrazing in parts of the area.
- Naming and Recognition (1945): In 1945, Frank Beckwith (a local explorer) and Charles Kelly (first superintendent/caretaker of Capitol Reef National Monument) named the area “Cathedral Valley.” The upward-sweeping, fluted monoliths reminded them of ornate Gothic cathedrals, Egyptian temples, and other grand architecture.
- Park Protection (1937–Present): Capitol Reef was designated a National Monument in 1937 by President Franklin D. Roosevelt to protect its canyons and geology. Cathedral Valley was included as the remote northern district. It became part of Capitol Reef National Park in 1971. The corral was listed on the National Register of Historic Places in 1999 (reference #99001093). Today, the area is preserved for its scenic, scientific, and wilderness values, with ranching largely phased out.
Cathedral Valley remains a backcountry gem—requiring preparation for its rugged 57-mile loop road (often impassable when wet due to bentonite clay). It offers a direct window into deep geologic time and Utah’s ranching past, with features like the Temples of the Sun and Moon still inspiring awe as they did in 1945. For current access details, consult the National Park Service.
