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Capitol Dome (Utah) facts for kids

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Capitol Dome
Capitol Dome, Capitol Reef National Park.jpg
West aspect, from State Route 24
Highest point
Elevation 6,120 ft (1,870 m)
Prominence 320 ft (98 m)
Isolation 0.54 mi (0.87 km)
Parent peak Navajo Dome (6,485 ft)
Geography
Capitol Dome is located in Utah
Capitol Dome
Capitol Dome
Location in Utah
Capitol Dome is located in the United States
Capitol Dome
Capitol Dome
Location in the United States
Location Capitol Reef National Park
Wayne County, Utah, United States
Parent range Colorado Plateau
Topo map USGS Fruita
Geology
Age of rock Jurassic
Type of rock Navajo Sandstone
Climbing
Easiest route class 5.x climbing

Capitol Dome is a 6,120-foot-elevation (1,870 m) summit located in Capitol Reef National Park, in Wayne County, Utah, United States. This iconic landmark is situated 2.5 miles (4.0 km) east of the park's visitor center, and 0.85 mi (1.37 km) southeast of Navajo Dome. Precipitation runoff from this feature is drained by tributaries of the Fremont River, which in turn is within the Colorado River drainage basin. It towers 800 feet (240 m) above the Fremont River and State Route 24. This geological feature's dome-like shape reminded early explorers and settlers of capitol buildings, and lent the park its name.

Geology

Capitol Dome is composed of Navajo Sandstone, which is believed to have formed about 180 million years ago as a giant sand sea, the largest in Earth's history. In a hot, dry climate, wind blew over sand dunes, creating large, sweeping crossbeds which date to the Jurassic. Long after the sedimentary rocks were deposited, the Colorado Plateau was uplifted relatively evenly, keeping the layers roughly horizontal, but Capitol Reef is an exception because of the Waterpocket Fold, a classic monocline, which formed between 50 and 70 million years ago during the Laramide Orogeny.

Gallery

Climate

Spring and fall are the most favorable seasons to visit Capitol Dome. According to the Köppen climate classification system, it is located in a Cold semi-arid climate zone, which is defined by the coldest month having an average mean temperature below 32 °F (0 °C), and at least 50% of the total annual precipitation being received during the spring and summer. This desert climate receives less than 10 inches (250 millimeters) of annual rainfall, and snowfall is generally light during the winter.

Climate data for Capitol Reef Visitor Center, elevation 5,653 ft (1,723 m), 1981-2010 normals, extremes 1981-2019
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 58.6
(14.78)
68.3
(20.17)
78.3
(25.72)
84.4
(29.11)
94.6
(34.78)
100.2
(37.89)
100.8
(38.22)
97.9
(36.61)
95.4
(35.22)
86.1
(30.06)
70.4
(21.33)
61.5
(16.39)
100.8
(38.22)
Average high °F (°C) 40.6
(4.78)
46.4
(8)
54.7
(12.61)
65.0
(18.33)
74.5
(23.61)
85.3
(29.61)
90.4
(32.44)
87.9
(31.06)
80.2
(26.78)
66.1
(18.94)
51.3
(10.72)
40.6
(4.78)
65.3
(18.5)
Average low °F (°C) 17.8
(-7.89)
22.7
(-5.17)
30.2
(-1)
36.2
(2.33)
44.7
(7.06)
53.1
(11.72)
60.4
(15.78)
58.5
(14.72)
50.4
(10.22)
39.0
(3.89)
27.6
(-2.44)
18.2
(-7.67)
38.3
(3.5)
Record low °F (°C) -4.2
(-20.11)
-11.8
(-24.33)
9.1
(-12.72)
18.1
(-7.72)
27.2
(-2.67)
34.6
(1.44)
42.4
(5.78)
45.1
(7.28)
29.9
(-1.17)
11.7
(-11.28)
8.0
(-13.33)
-7.5
(-21.94)
-11.8
(-24.33)
Precipitation inches (mm) 0.52
(13.2)
0.34
(8.6)
0.53
(13.5)
0.47
(11.9)
0.59
(15)
0.47
(11.9)
0.91
(23.1)
1.20
(30.5)
0.80
(20.3)
0.98
(24.9)
0.49
(12.4)
0.32
(8.1)
7.62
(193.5)
Source: PRISM
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