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Black River Benchmark, Washington
Prominence: 458 ft, 139 m
Elevation: 490+ feet, 149+ meters
True Isolation: 2.73 mi, 4.4 km
Elevation Info:
Elevation range: 490 - 492 ft
(2-foot closed contour)
NAVD88 Elevation
: 494 ft / 150 m
(Range 494 - 496 ft)
Local or Alternate Name(s)
Alternate: Skyway Hill
Peak Type
Benchmark/Trig Point
Latitude/Longitude (WGS84)
47° 29' 15'' N, 122° 14' 36'' W
47.487564, -122.24343 (Dec Deg)
556993 E 5259625 N, Zone 10 (UTM)
Country
United States
State/Province
Washington
County/Second Level Region
King
Links
Search Engines - search the web for "Black River Benchmark":
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Other Web Sites
Duwamish Hill at SummitPost.org
Black River Benchmark at ListsOfJohn.com
Weather and Snow
National Weather Service Forecast
NOAA Snow Depth Map
Ascent Info
Total successful ascents logged by registered Peakbagger.com users:
35
Show all viewable ascents/attempts
(Total: 35)
Selected Trip Reports from this site:
2010-12-25 by Eric Noel
2012-01-23 by Craig Willis
2015-02-11 by Marion Bauman
2019-07-12 by Austin Smith
2020-04-19 by Austin Smith
Nearby Peak Searches:
Radius Search - Nearest Peaks to Black River Benchmark
Elevation Ladder from Black River Benchmark
Prominence Ladder from Black River Benchmark
Dynamic Map
Black River Benchmark
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Prominence
Key Col Page
(Detailed prominence information)
Clean Prominence
: 458 ft/139 m
Optimistic Prominence
: 462 ft/139 m
Line Parent
:
McDonald Lookout Site
Key Col
: Old Black River Channel 32 ft/10 m
Isolation
Isolation Page
(Detailed isolation information)
Distance: 2.73 mi/4.4 km
Isolation Limit Point
: 47.4567, -122.2808
Nearest Higher Neighbor
in the
PBC database
:
Tukwila High Point
(SW)
Ranges
Continent:
North America
Range2:
Pacific Ranges
Range3:
Cascade Range
Range4:
South Washington Cascades
Range5:
Alpine Lakes Area
Range6:
Seattle-Everett Area
Drainage Basins
Duwamish
Puget Sound
Strait of Juan de Fuca
Pacific Ocean
Lake Washington
Puget Sound
Strait of Juan de Fuca
Pacific Ocean
Ownership
Land: Private Land
Topo Map
Renton O47122d1 1:25,000
Route #1
Paved Road
Data Source
GPS Reading or LIDAR
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