Alcatraz Island High Point, California

Prominence: 140 ft, 43 m

Elevation: 140 feet, 43 meters

True Isolation: 1.58 mi, 2.54 km
Elevation Info:NAVD88 Elevation: 143 ft / 44 m
Peak TypeUnnamed High Point
Latitude/Longitude (WGS84)37° 49' 34'' N, 122° 25' 19'' W
37.826226, -122.422071 (Dec Deg)
550860 E 4186692 N, Zone 10 (UTM)
CountryUnited States
County/Second Level RegionSan Francisco
City/TownSan Francisco

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Ascent Info

Total ascents/attempts logged by registered users: 111
     Show all viewable ascents/attempts (Total: 106)

Selected Trip Reports:
     1984-12-16 by Ben Lostracco
     1986-10-13 by Julie Ann Gregg
     1988-09-17 by Julie Ann Gregg
     2007-07-19 by Steve Blanchette
     2009 by Bryan Kraai
     2011-11-18 by Michael Wanberg
     2012-07-21 by Ed Wandall
     2014-10-26 by Rich Jar
     2016-03-30 by Nate B (GPS Track)
     2019-05-13 by Jim Blingpants (GPS Track)
     2021-09-28 by Andy Hatzos (GPS Track)

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Click on photo for original larger-size version.
Panorama view from Alcatraz Island (2019-05-13). Photo by Jim Blingpants.
Click here for larger-size photo.
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Prominence  Clean Prominence: 140 ft/43 m
  Optimistic Prominence: 140 ft/43 m
  Key Col: 0 ft/0 m
IsolationIsolation Page  (Detailed isolation information)
   Distance: 1.58 mi/2.54 km
   Isolation Limit Point: 37.8033, -122.4217
Nearest Higher Neighbor in the PBC database:
    Telegraph Hill  (S)
RangesContinent: North America
Range2: Pacific Ranges
Range3: Central and Southern California Ranges
Range4: Central California Coast Ranges
Range5: Santa Cruz Mountains
Drainage BasinsSan Francisco Bay
Pacific-Western USA
Pacific Ocean
IslandAlcatraz (Highest Point)
OwnershipLand: Golden Gate National Recreation Area
Topo MapSan Francisco North O37122g4 1:24,000
Data Source1:25,000 (or larger) Topographic Survey Map
This peak was submitted to the database by Jim Retemeyer.
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