Grand Ridge, Washington

Prominence: 890 ft, 271 m

Elevation: 1430+ feet, 436+ meters

True Isolation: 2.03 mi, 3.27 km
Elevation Info:Elevation range: 1430 - 1440 ft
    (10-foot closed contour)
NAVD88 Elevation: 1434 ft / 437 m
    (Range 1434 - 1444 ft)
SubpeaksGrand Ridge-South Peak (1280 ft/390 m)
Grand Ridge-Northwest Peak (1194 ft/364 m)
Latitude/Longitude (WGS84)47° 33' 4'' N, 121° 57' 41'' W
47.55106, -121.96134 (Dec Deg)
578149 E 5266927 N, Zone 10 (UTM)
CountryUnited States
County/Second Level RegionKing

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     North Grand Ridge at
     North Grand Ridge at Summits on the Air (Amateur Radio)

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Ascent Info

Total successful ascents logged by registered users: 58
     Show all viewable ascents/attempts (Total: 56)

Selected Trip Reports:
     2008-09-15 by Ralph Owen
     2015-05-17 by Greg Slayden (GPS Track)
     2016-02-26 by Eric Noel
     2017-03-04 by Scott Rice (GPS Track)
     2018-10-30 by Grant Cappy
     2019-05-11 by John Morrow
     2019-08-06 by Mike Black (GPS Track)
     2020-01-18 by Turner Bluechel (GPS Track)
     2020-02-12 by Benjamin Wilson
     2020-11-29 by Max Schrempp (GPS Track)
     2020-12-22 by Susan Shih (GPS Track)
     2021-02-20 by Joanne Najdzin (GPS Track)
     2021-04-05 by Rich P

Nearby Peak Searches:
     Radius Search - Nearest Peaks to Grand Ridge
     Elevation Ladder from Grand Ridge
     Prominence Ladder from Grand Ridge

The USGS topo map shows 2 contours of 1420 feet (20' interval), the southern one with a 1422 spot elevation. The King County iMAP GIS site shows 2 contours of 1430' (10' interval). The southern area is on private property, and the King County map show that it is by far the smaller contour and it almost entirely coincides with a house. The northern contour is on public state forest land and is larger and is also undisturbed natural ground. This northern contour almost certainly seems like the actual high point of Grand Ridge.

A good unmaintained trail on public property leads from the Grand Ridge trail to within 0.3 miles of the high point. The last bit is some nasty bushwhacking to the indicated coordinates, an obvious rise in the forest well away from the nearby private residences.

Dynamic Map

 Grand Ridge    Other Peaks
Click Here for a Full Screen Map
Web Map LinksPeakfinder Panorama
GeoHack Links   CalTopo   MyTopo   Bing Maps
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ProminenceKey Col Page  (Detailed prominence information)
  Clean Prominence: 890 ft/271 m
  Optimistic Prominence: 920 ft/280 m
  Line Parent: West Tiger Mountain
  Key Col: 540 ft/165 m
IsolationIsolation Page  (Detailed isolation information)
   Distance: 2.03 mi/3.27 km
   Isolation Limit Point: 47.5217, -121.9625
Nearest Higher Neighbor in the PBC database:
    West Tiger Mountain #3  (S)
RangesContinent: North America
Range2: Pacific Ranges
Range3: Cascade Range
Range4: South Washington Cascades
Range5: Alpine Lakes Area
Range6: Seattle-Everett Area (Highest Point)
Drainage BasinsSnoqualmie
Puget Sound
Strait of Juan de Fuca
Pacific Ocean
Topo MapFall City O47121e8 1:24,000
Data Source1:25,000 (or larger) Topographic Survey Map

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