The Marcola 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.
Chance of showers
Showers likely
Chance of showers
Showers likely
Chance of showers
Partly cloudy
Partly cloudy
73° on Nov. 14, 1999, the hottest reading for this week of the year since 1933. Next is 72° in 1995.
Marcola’s center stands about 540 ft above sea level. Within three miles the land runs from 500 ft to 1,790 ft, a difference of 1,290 ft: steep hill country. The highest named summit within 15 miles is Walker Point, about 3,760 ft, 14 miles southeast.
Under the town center the state geologic map shows Alluvial deposits (sand, gravel, silt), from the Holocene, less than 12,000 years old.
The section below crosses 8 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 7×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Basalt, basaltic-andesite. Age: Oligocene to Miocene, 5.3 to 34 million years old. About 12 mi of the line.
Coarse-detrital. Age: Pleistocene to Holocene, less than 2.6 million years old. About 3 mi of the line.
Basalt, basaltic-andesite. Age: Oligocene to Miocene, 5.3 to 34 million years old. About 3 mi of the line.
Sandstone, siltstone. Age: Late Eocene to Oligocene, 23 to 38 million years old. About 2 mi of the line.
Clay, silt, sand. Age: Pleistocene, less than 2.6 million years old. About 2 mi of the line.
Sand, gravel, silt. Age: Holocene, less than 12,000 years old. About 0.7 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 2 smaller units along the line are not listed.
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 Marcola reaches the Pacific Ocean by way of the Mohawk, the McKenzie, the Willamette and the Columbia: about 290 river miles.
Lake on the way: Willamette Falls Hydroelectric Power Reservoir.
100 miles of the trip are on the Columbia.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Marcola; river miles along the main stem, rounded.
Marcola has a warm-summer Mediterranean climate. Summer afternoons average 84° in July; winter nights fall to about 35° in January. About 67 inches of rain fall in a normal year, with about 3 inches of snow.
On November 14 Marcola normally reaches 54° and falls to 39°. The record high is 73°, in 1999; the record low 21°, in 1978. The most rain on this date, 2.61 in, fell in 2014.
Normals 1991–2020 and records since 1933 at Leaburg 1 SW, 10 miles east-southeast, 140 ft higher. NOAA, through RCC-ACIS.
