The Napi Headquarters plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.
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78° on Nov. 16, 2024, the hottest reading for this week of the year since 1978. Next is 77° in 2025.
Napi Headquarters’s center stands about 6,040 ft above sea level. Within three miles the land runs from 5,610 ft to 6,110 ft, a difference of 500 ft: hilly country. The highest named summit within 15 miles is Moncisco Mesa, about 6,580 ft, 12 miles south.
Under the town center the state geologic map shows Nacimiento Formation (sandstone, shale, conglomerate), from the Paleocene, 56 to 66 million years old.
The section below crosses 5 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 19×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sandstone, shale, conglomerate. Age: Paleocene, 56 to 66 million years old. About 15 mi of the line.
Unconsolidated. Age: Pleistocene to Holocene, less than 0.1 million years old. About 4 mi of the line.
Conglomerate-sandstone, shale. Age: Paleocene, 56 to 66 million years old. About 2 mi of the line.
Sandstone, shale. Age: Late Cretaceous, 72 to 84 million years old. About 2 mi of the line.
Andesite, conglomerate-sandstone. Age: Late Cretaceous to Paleocene, 56 to 100 million years old. About 1 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale.
Heights from Copernicus GLO-90 (a surface model: it includes buildings and tree canopy); summits from USGS GNIS; rivers from USGS NHDPlus HR; rock from the USGS State Geologic Map Compilation.
A raindrop that lands in Napi Headquarters reaches the Gulf of California by way of the San Juan and the Colorado: about 1,110 river miles.
Lakes on the way: Lake Mead, Lake Powell, Lake Mohave and Lake Havasu.
290 miles of the trip are on the Colorado.
Seldom reaches the sea. Dams and canals now take nearly all of the Colorado before its old delta in Mexico.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Napi Headquarters; river miles along the main stem, rounded.
Napi Headquarters has a cold semi-arid climate. Summer afternoons average 90° in July; winter nights fall to about 20° in January. A normal year brings about 9 inches of snow; with the rain, that comes to about 8 inches of water.
On November 14 Napi Headquarters normally reaches 54° and falls to 29°. The record high is 77°, in 2025; the record low 17°, in 2010. The most rain on this date, 0.15 in, fell in 2011.
Normals 1991–2020 and records since 1978 at Farmington Ag Science Cnt, 6 miles west-northwest, 420 ft lower. NOAA, through RCC-ACIS.
