Vulcan's Throne

Volcano Cinder cone and scenic overlook on Grand Canyon

Cinder cone on the North Rim of the Grand Canyon within the Uinkaret volcanic field; visited for geology, rim viewpoints and short hikes above the Colorado River.

00354 Grand Canyon Toroweap Tuweep (7946490166).jpg
Basalt (Upper Pleistocene, ~73 ka; Vulcan's Throne Cinder Cone, Uinkaret Volcanic Field, Arizona, USA) (46547522024).jpg
Colorado River. Grand Canyon, the Cinder Cones near foot of Toroweap. The cinder cones on edge of - NARA - 518030.jpg
Colorado River. Grand Canyon, the Cinder Cones near foot of Toroweap. The cinder cones on edge of the Grand Canyon at... - NARA - 518030.jpg
Grand Canyon, from about Mohawk to Whitmore Canyons, below the Uinkaret Volcanic Field.jpg
Vulcan's Throne Cinder Cone - Flickr - brewbooks.jpg
Vulcans Throne and Lava Falls in Grand Canyon NP.jpg
Vulcans Throne Nichols med00380.jpg
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Water Pocket - Flickr - brewbooks (1).jpg

Vulcan’s Throne is a volcanic cinder cone located on the North Rim of the Grand Canyon in northwestern Arizona. It forms part of the Uinkaret volcanic field and rises at the canyon rim above the Colorado River.

The cone was produced by relatively recent volcanic activity within the Uinkaret field; lava flows from vents in this field reached the canyon floor in multiple episodes. Those flows altered local river morphology where they reached the Colorado River.

The feature sits on the Grand Canyon’s North Rim near the Toroweap/Tuweep area in northwestern Arizona. The location is remote with limited nearby services; approach is normally via unpaved roads from the north or east.

  • Geology: The site is a cinder cone on the North Rim of the Grand Canyon and is part of the broader Uinkaret volcanic field.
  • Access: Access is remote and typically via the unpaved Tuweep/Toroweap road; high-clearance vehicles and planning for limited services are strongly recommended.

What to See #

  • Toroweap Overlook: A remote rim viewpoint adjacent to the cinder cone that looks down to Lava Falls and the Colorado River, commonly accessed from the Toroweap/Tuweep area.
Vulcan's Throne
36.2172, -113.0780

How to Get to Vulcan's Throne #

Access from St. George/US‑89 area: take Arizona State Route 389 and County Road 109 (Tuweep Road) toward the Toroweap/Tuweep overlook on the North Rim-a rough, unpaved Forest Service road that typically requires high-clearance or 4x4 vehicles and can be impassable in wet conditions. The overlook is about a 2-3 hour drive from Fredonia/Williams Junction depending on conditions.

Tips for Visiting Vulcan's Throne #

  • A high-clearance vehicle is recommended on the unpaved Forest Service roads that access Toroweap/Tuweep.
  • Arrive early in the day for the best light on the overlook and to avoid afternoon winds that can make photography difficult.
  • Do not attempt off-road driving on the rim without experience; the area is remote and cell service is unreliable.

Best Time to Visit Vulcan's Throne #

Spring and autumn are the best times to visit the Toroweap/Vulcan's Throne area for cooler temperatures and stable road conditions; summer is very hot and winter can bring snow on the rim.

Spring
March-May · 10-25°C (50-77°F) near trailheads; hotter on exposed rims
Mild temperatures and wildflowers in adjacent canyons; still relatively low visitor numbers.
Autumn
September-November · 15-30°C (59-86°F)
Clear skies and comfortable days for rim viewpoints and hiking.

Weather & Climate near Vulcan's Throne #

Climate

Vulcan's Throne's climate is classified as Cold Desert - Cold Desert climate with hot summers (peaking in July) and cold winters (coldest in January). Temperatures range from -3°C to 36°C. Semi-arid with limited rainfall.

Temperature & Rainfall
Temperature Range
36°
Warmest Month
-3°
Coldest Month
Monthly Conditions

January

January is the coolest month with highs of 11°C and lows of -3°C. Light rainfall.

Comfort

Feels Like Cold
C
Temperature
-3° 11°

Weather

27 mm
Rainfall
2.8 m/s
Wind
Calm

February

February is cold with highs of 13°C and lows of -1°C. Light rainfall.

Comfort

Feels Like Cold
C
Temperature
-1° 13°

Weather

25 mm
Rainfall
3.1 m/s
Wind
Light Breeze

March

March is cold with highs of 16°C and lows of 1°C. Moderate rainfall (32 mm).

Comfort

Feels Like Cold
C
Temperature
16°

Weather

32 mm
Rainfall
3.6 m/s
Wind
Light Breeze

April

April is cool with highs of 21°C and lows of 4°C. Light rainfall.

Comfort

12°
Feels Like Cool
12°C
Temperature
21°

Weather

17 mm
Rainfall
4.0 m/s
Wind
Light Breeze

May

May is cool with highs of 26°C and lows of 8°C. Light rainfall.

Comfort

17°
Feels Like Cool
17°C
Temperature
26°

Weather

13 mm
Rainfall
4.1 m/s
Wind
Light Breeze

June

June is mild with highs of 31°C and lows of 13°C. The driest month with just 9 mm.

Comfort

22°
Feels Like Mild
22°C
Temperature
13° 31°

Weather

9 mm
Rainfall
4.1 m/s
Wind
Light Breeze

July

July is the warmest month with highs of 36°C and lows of 18°C. Moderate rainfall (37 mm).

Comfort

27°
Feels Like Warm
27°C
Temperature
18° 36°

Weather

37 mm
Rainfall
3.7 m/s
Wind
Light Breeze

August

August is warm with highs of 35°C and lows of 18°C. The wettest month with 42 mm of rain.

Comfort

27°
Feels Like Warm
27°C
Temperature
18° 35°

Weather

42 mm
Rainfall
3.4 m/s
Wind
Light Breeze

September

September is mild with highs of 32°C and lows of 15°C. Light rainfall.

Comfort

23°
Feels Like Mild
23°C
Temperature
15° 32°

Weather

24 mm
Rainfall
3.2 m/s
Wind
Light Breeze

October

October is cool with highs of 26°C and lows of 8°C. Light rainfall.

Comfort

17°
Feels Like Cool
17°C
Temperature
26°

Weather

20 mm
Rainfall
3.1 m/s
Wind
Light Breeze

November

November is cool with highs of 18°C and lows of 3°C. Light rainfall.

Comfort

10°
Feels Like Cool
10°C
Temperature
18°

Weather

25 mm
Rainfall
3.0 m/s
Wind
Light Breeze

December

December is cold with highs of 12°C and lows of -2°C. Light rainfall.

Comfort

Feels Like Cold
C
Temperature
-2° 12°

Weather

29 mm
Rainfall
2.7 m/s
Wind
Calm

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