The Echo 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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80° on Nov. 12, 1999, the hottest reading for this week of the year since 1892. Next is 75° in 1908.
Echo’s center stands about 700 ft above sea level. Within three miles the land runs from 590 ft to 940 ft, a difference of 350 ft: rolling country. The highest named summit within 15 miles is Service Buttes, about 1,680 ft, 9 miles southwest.
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 12×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Silt, sand, gravel. Age: Pleistocene, less than 2.6 million years old. About 11 mi of the line.
Basalt. Age: Middle Miocene, 12 to 16 million years old. About 11 mi of the line.
Sand, gravel, silt. Age: Holocene, less than 12,000 years old. About 2 mi of the line.
Silt, sand. Age: Pleistocene to Holocene, less than 2.6 million years old. About 0.3 mi of the line.
Basalt. Age: Early Miocene to Middle Miocene, 12 to 23 million years old. About 0.3 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 Echo reaches the Pacific Ocean by way of the Umatilla and the Columbia: about 310 river miles.
Lake on the way: Lake Umatilla.
210 miles of the trip are on the Columbia.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Echo; river miles along the main stem, rounded.
Echo has a cold semi-arid climate. Summer afternoons average 89° in July; winter nights fall to about 28° in January. A normal year brings about 16 inches of snow; with the rain, that comes to about 13 inches of water.
On November 14 Echo normally reaches 50° and falls to 33°. The record high is 72°, in 1953; the record low −4°, in 1955. The most rain on this date, 0.53 in, fell in 1963.
Normals 1991–2020 and records since 1892 from the Pendleton Area threaded record (Pendleton E Or Regional Airport, 18 miles east, 780 ft higher). NOAA, through RCC-ACIS.
