Black River Benchmark, Washington

Prominence: 441 ft, 134 m

Elevation: 490+ feet, 149+ meters

True Isolation: 2.76 mi, 4.44 km
Elevation Info:Elevation range: 490 - 492 ft
    (2-foot closed contour)
NAVD88 Elevation: 494 ft / 150 m
    (Range 494 - 496 ft)
Alternate Name(s)Skyway Hill
Peak TypeHill
Latitude/Longitude (WGS84)47° 29' 15'' N, 122° 14' 36'' W
47.487564, -122.24343 (Dec Deg)
556993 E 5259625 N, Zone 10 (UTM)
CountryUnited States
County/Second Level RegionKing
City/TownBryn Mawr-Skyway

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Other Web Sites
     Duwamish Hill at
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Weather and Snow
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Selected Trip Reports from this site:
     2010-12-25 by Eric Noel
     2012-01-23 by Craig Willis
     2015-02-11 by Marion Bauman

View ascents of peak by registered members (20 total)

Nearby Peak Searches:
     Radius Search - Nearest Peaks to Black River Benchmark
     Elevation Ladder from Black River Benchmark
     Prominence Ladder from Black River Benchmark

Google Maps Dynamic Map

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ProminenceKey Col Page  (Detailed prominence information)
  Clean Prominence: 441 ft/134 m
  Optimistic Prominence: 443 ft/134 m
  Key Col: Montlake Cut    49 ft/15 m
IsolationIsolation Page  (Detailed isolation information)
   Distance: 2.76 mi/4.44 km
   Isolation Limit Point: 47.4567, -122.2808
Nearest Higher Neighbor in the PBC database:
    McMicken Heights  (SW)
RangesContinent: North America
Range2: Pacific Ranges
Range3: Cascade Range
Range4: South Washington Cascades
Range5: Alpine Lakes Area
Range6: Seattle-Everett Area
Drainage Basins
Puget Sound
Pacific Ocean
Lake Washington
Puget Sound
Pacific Ocean
OwnershipLand: Private Land
Topo MapRenton O47122d1 1:25,000
Route #1 Paved Road
Data SourceGPS Reading or LIDAR

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