The Leaf Valley 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.
Mostly sunny
Mostly sunny
Partly cloudy
Partly cloudy
Chance of showers
Partly cloudy
Showers likely
−8° on Nov. 14, 1959, the coldest reading for this week of the year since 1940. Next is −5° in 1940.
Leaf Valley’s center stands about 1,430 ft above sea level. Within three miles the land runs from 1,350 ft to 1,450 ft, a difference of 100 ft: gently rolling country. The highest named summit within 15 miles is Inspiration Peak, about 1,720 ft, 8 miles northwest.
Under the town center the state geologic map shows Volcaniclastic rocks of felsic to intermediate composition (felsic-volcanic), from the Neoarchean, 2.5 to 2.8 billion 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 64×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Schist, paragneiss. Age: Neoarchean, 2.5 to 2.8 billion years old. About 7 mi of the line.
Schist. Age: Neoarchean, 2.5 to 2.8 billion years old. About 6 mi of the line.
Felsic-volcanic. Age: Neoarchean, 2.5 to 2.8 billion years old. About 5 mi of the line.
Gabbro, peridotite, pyroxenite. Age: Neoarchean, 2.5 to 2.8 billion years old. About 3 mi of the line.
Granitic. Age: Neoarchean, 2.5 to 2.8 billion years old. About 3 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 Leaf Valley reaches the Gulf of America by way of Lake Miltona, Lake Ida, Lake Carlos, the Long Prairie, the Crow Wing and the Mississippi: about 2,110 river miles.
Lakes on the way: Lake Pepin, Lake Miltona, Lake Ida and Lake Carlos.
1,750 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Leaf Valley; river miles along the main stem, rounded.
Leaf Valley has a dry-winter warm-summer continental climate. Summer afternoons average 80° in July; winter nights fall to about 2° in January. About 24 inches of rain fall in a normal year.
On November 14 Leaf Valley normally reaches 38° and falls to 24°. The record high is 69°, in 1953; the record low −8°, in 1959. The most rain on this date, 0.22 in, fell in 1951.
Normals 1991–2020 and records since 1940 at Alexandria Chandler Field, 13 miles south-southeast. NOAA, through RCC-ACIS.
