Regional overview

The Henry Mountains are a remote laccolithic range in south-central Utah, rising abruptly between Capitol Reef, the Dirty Devil country and Lake Powell. This is not a signed, high-density trail region: the essential day hikes are mostly summit routes reached by long dirt roads, with navigation, road-condition judgment, heat, lightning and self-reliance mattering as much as foot fitness. The hiking character is isolated desert-to-subalpine peak walking with short but steep summit climbs and long views across the Colorado Plateau.

Access is primarily by high-clearance vehicle on primitive BLM roads out of Hanksville, SR-95 and SR-276. Bull Creek Pass is the main backcountry driving route through the range. Verified public route statistics were found on AllTrails for Mount Ellen, Bull Mountain and Mount Ellsworth; route stats for Mount Pennell and Mount Hillers remain unresolved and those hikes are best treated as navigation routes rather than maintained trails.

See also: La Sal Mountains, Utah · Aquarius Plateau, Utah.

Selection rationale

The five hikes cover the main hiking identities of the Henrys: the range high point on Mount Ellen, the second major summit at Mount Pennell, the central laccolithic peak of Mount Hillers, the northern isolated summit of Bull Mountain, and Mount Ellsworth in the southern Little Rockies. The selection is deliberately summit-focused because verified public day-hike options in the Henrys are sparse.

Summary table

# Hike Country Route type Distance Gain Max elevation Difficulty
1 Mount Ellen Peak Trail USA Out-and-back summit 9.2 km 566 m 3,513 m Hard
2 Mount Pennell summit route USA Out-and-back / navigation route Not verified Not verified 3,478 m Hard
3 Mount Hillers summit route USA Out-and-back scramble Not verified Not verified 3,274 m Hard
4 Bull Mountain USA Out-and-back summit 3.9 km 539 m 2,800 m Hard
5 Mount Ellsworth North Ridge USA Out-and-back summit 10.5 km 925 m 2,510 m Hard

1. Mount Ellen Peak Trail

Snapshot

CountryUSA (Utah, Henry Mountains, Mount Ellen–Blue Hills area)
Sub-regionNorthern Henry Mountains — Mount Ellen high ridge
StartHigh-clearance road approach near Bull Creek Pass / Mount Ellen roads; exact trailhead unverified
FinishMount Ellen high ridge / summit area, returning the same way
Route typeOut-and-back summit route
Distance9.2 km / 5.7 mi; AllTrails
Elevation gain566 m / 1,857 ft; AllTrails
Elevation loss~566 m on return
Maximum elevation3,513 m / 11,527 ft at Mount Ellen — high point of Garfield County and the range; secondary reference
Estimated time4 to 6 hours; AllTrails duration unresolved
DifficultyHard
Best seasonOnce high roads are snow-free; high Henry roads can hold snow into summer
Public transportNo public transport verified; long dirt-road access
Verification statusPartially verified — AllTrails route statistics and secondary summit-elevation reference; official BLM/USGS route card unresolved
Mount Ellen ridge rising above high desert country in the northern Henry Mountains
The Mount Ellen high ridge north of the Glen Canyon National Recreation Area — the range high point at 3,513 m. Photo: Ken Lund, via Wikimedia Commons (CC BY-SA 2.0).

Itinerary

From the high road approach, follow the Mount Ellen peak trail / use-path onto the broad upper ridge and toward the Henry Mountains high point. The outing is short by mountain standards but highly dependent on road access and settled weather.

Why it is essential

Mount Ellen is the highest point of the Henry Mountains and of Garfield County, and the cleanest single-day route into the range’s subalpine summit terrain.

Equipment

  • Hiking shoes or boots
  • Wind layer; sun protection
  • Water; emergency kit
  • Offline topo map and GPS
  • High-clearance vehicle planning; recovery basics

Hazards and notes

  • Remote road access; limited or absent cell service.
  • Loose rock; high-elevation wind and lightning.
  • Snow can obscure tread outside high summer.

GPX / route file

Source URL Format Notes
AllTrails — Mount Ellen Peak Trail alltrails.com Source map / proprietary trail database Direct GPX not retrieved; do not reuse proprietary geometry directly
OpenStreetMap search openstreetmap.org Source map Reusable only under ODbL terms with attribution/share-alike

Sources

2. Mount Pennell summit route

Snapshot

CountryUSA (Utah, central Henry Mountains)
Sub-regionCentral Henry Mountains — Mount Pennell
StartVariable primitive-road start on Mount Pennell approaches; exact public trailhead unverified
FinishMount Pennell summit, returning by the same approach
Route typeOut-and-back off-trail / use-trail summit route
DistanceNot verified — varies by chosen road start
Elevation gainNot verified — varies by chosen road start
Elevation lossSame as gain on return; not quantified
Maximum elevation3,478 m / 11,413 ft at Mount Pennell; secondary reference
Estimated timeHalf-day to full-day summit outing; not published
DifficultyHard — primitive-route mountain walking
Best seasonSpring or fall for lower access roads; high slopes can hold snow; summer brings low-elevation heat and lightning risk
Public transportNo public transport verified
Verification statusSummit identity and elevation verified from secondary sources; route statistics unresolved
Wide panorama of Mount Pennell in the central Henry Mountains
Mount Pennell — the second-highest summit of the Henry Mountains and a major central laccolithic peak. Photo: Murray Foubister, via Wikimedia Commons (CC BY-SA 2.0).

Itinerary

Ascend Mount Pennell from the most practical road-access point available at the time of travel, then follow ridges and open slopes to the summit. Because no public route geometry is verified, treat this as a navigation route rather than a maintained trail.

Why it is essential

Mount Pennell is the second-highest Henry Mountains summit and a major central laccolithic peak, giving a different perspective on the range than Mount Ellen.

Equipment

  • Sturdy footwear
  • Offline topo map and GPS
  • Robust vehicle-access plan
  • Water; sun and wind protection
  • Emergency kit

Hazards and notes

  • No verified maintained trail — route-finding required.
  • Remote access; loose rock; limited rescue margin.
  • Monsoon lightning risk above treeline.

GPX / route file

Source URL Format Notes
Reference page — Mount Pennell en.wikipedia.org Summit context only No official route file located
OpenStreetMap search openstreetmap.org Source map Reusable only under ODbL terms with attribution/share-alike

Sources

3. Mount Hillers summit route

Snapshot

CountryUSA (Utah, central Henry Mountains)
Sub-regionCentral Henry Mountains — Mount Hillers
StartVariable primitive-road start near Mount Hillers; exact public trailhead unverified
FinishMount Hillers summit, returning by the same approach
Route typeOut-and-back scramble / summit route
DistanceNot verified — varies by chosen road start
Elevation gainNot verified — varies by chosen road start
Elevation lossSame as gain on return; not quantified
Maximum elevation3,274 m / 10,741 ft at Mount Hillers; secondary reference
Estimated timeHalf-day to full-day outing; not published
DifficultyHard — secondary sources report scrambling as the easiest route type
Best seasonDry, settled weather; avoid monsoon storms and winter / spring mud or snow
Public transportNo public transport verified
Verification statusSummit facts verified from secondary sources; route statistics unresolved
Panoramic view of Mount Hillers at the geological core of the Henry Mountains
Mount Hillers — the visual and geologic core of the Henry Mountains, named for John Karl Hillers of the Powell surveys. Photo: Robert Emberson, via Wikimedia Commons (CC BY 3.0).

Itinerary

From a suitable road-access point, climb toward Mount Hillers on the most practical ridge or slope line and return the same way. No official trail route is verified in this pass.

Why it is essential

Mount Hillers is the visual and geologic heart of the Henry Mountains — a prominent laccolithic summit named for John Karl Hillers of the Powell surveys.

Equipment

  • Scrambling-capable footwear
  • Offline topo map and GPS
  • Water; sun protection; wind layer
  • Emergency kit; gloves for loose rock

Hazards and notes

  • Scrambling and loose rock; helmet worth considering.
  • No verified maintained trail — route-finding required.
  • Remote travel; limited cell service.

GPX / route file

Source URL Format Notes
Reference page — Mount Hillers en.wikipedia.org Summit context only No official route file located
OpenStreetMap search openstreetmap.org Source map Reusable only under ODbL terms with attribution/share-alike

Sources

4. Bull Mountain

Snapshot

CountryUSA (Utah, northern Henry Mountains)
Sub-regionNorthern Henry Mountains — Bull Mountain
StartBull Mountain primitive-road approach; exact trailhead unverified
FinishBull Mountain summit, returning the same way
Route typeOut-and-back summit route
Distance3.9 km / 2.4 mi; AllTrails
Elevation gain539 m / 1,768 ft; AllTrails
Elevation loss~539 m on return
Maximum elevation2,800 m / 9,187 ft at Bull Mountain; secondary reference
Estimated time2 hours 34 minutes; AllTrails
DifficultyHard — short but steep
Best seasonDry shoulder-season or settled summer weather; avoid wet roads, snow and thunderstorms
Public transportNo public transport verified
Verification statusPartially verified — AllTrails route statistics; official BLM/USGS route card unresolved
South aspect of Bull Mountain rising above the desert north of Mount Ellen
Bull Mountain from the south, with the northern Henry Mountains and Burr Desert stretching beyond. Photo: John Fowler, via Wikimedia Commons (CC BY 2.0).

Itinerary

From the primitive-road approach, climb directly toward the Bull Mountain summit area and return the same way. Mount Ellen forms a prominent backdrop to the south-southwest.

Why it is essential

Bull Mountain represents the northern Henrys with a compact but steep summit outing, and sweeping views toward the Burr Desert, Mount Ellen and Capitol Reef country.

Equipment

  • Sturdy footwear
  • Offline map and GPS
  • Water; sun protection
  • Vehicle self-recovery basics

Hazards and notes

  • Steep short ascent; loose rock.
  • Remote road access; exposure to sun and weather.
  • No maintained trail signage verified.

GPX / route file

Source URL Format Notes
AllTrails — Bull Mountain alltrails.com Source map / proprietary trail database Direct GPX not retrieved; do not reuse proprietary geometry directly
OpenStreetMap search openstreetmap.org Source map Reusable only under ODbL terms with attribution/share-alike

Sources

5. Mount Ellsworth North Ridge

Snapshot

CountryUSA (Utah, Little Rockies, southern Henry Mountains)
Sub-regionLittle Rockies — Mount Ellsworth
StartLittle Rockies / Mount Ellsworth approach; exact trailhead unverified
FinishMount Ellsworth summit, returning the same way
Route typeOut-and-back summit route
Distance10.5 km / 6.5 mi; AllTrails
Elevation gain925 m / 3,035 ft; AllTrails
Elevation loss~925 m on return
Maximum elevation2,510 m / 8,235 ft at Mount Ellsworth; secondary reference
Estimated time5 hours 04 minutes; AllTrails
DifficultyHard
Best seasonShoulder seasons often best; storms, heat and road conditions must be checked
Public transportNo public transport verified
Verification statusPartially verified — AllTrails route statistics; official BLM/USGS route card unresolved
Aerial view of Mount Ellsworth in the Little Rockies of the southern Henry Mountains
Mount Ellsworth from the air — the Little Rockies, a distinct lower laccolithic group of the Henrys close to Lake Powell. Photo: formulanone, via Wikimedia Commons (CC BY-SA 2.0).

Itinerary

Follow the North Ridge route toward Mount Ellsworth in the Little Rockies — the lower southern group of the Henry Mountains — then return the same way.

Why it is essential

Mount Ellsworth adds a southern Henry Mountains objective to the catalogue and captures the Little Rockies, a distinct lower laccolithic group near Lake Powell.

Equipment

  • Sturdy footwear
  • Offline map and GPS
  • Water; sun protection
  • Emergency kit; trekking poles useful on loose slopes

Hazards and notes

  • Long remote approach; sparse shade.
  • Steep gain on loose desert-mountain terrain.
  • Limited communications; monsoon storms possible.

GPX / route file

Source URL Format Notes
AllTrails — Mount Ellsworth North Ridge alltrails.com Source map / proprietary trail database Direct GPX not retrieved; do not reuse proprietary geometry directly
OpenStreetMap search openstreetmap.org Source map Reusable only under ODbL terms with attribution/share-alike

Sources

Further reading