The Mountain
Orometric (most recent) Height -- NEW HEIGHT --
|
3,864 |
[i]
|
| Clean Prominence |
3,109+20 |
[ii]
|
| Prominence Rank |
42nd in State |
|
Latitude
|
37° 53' N
|
approximate
|
Longitude
|
121° 55' W |
approximate
|
Summit Elevation Information
NAVD88 Elevation (benchmark)
|
3,864' |
[iii] |
USGS Published Elevation (NGVD29):
-- OLD HEIGHT --
|
3,849' |
[v]
|
| Summit Interval (Summit Error Range): |
0 |
[vi]
|
| Benchmark Name (if any): |
Mount Diablo |
|
| Benchmark PID: |
HS5120 |
|
| Known elev. difference BM to summit: |
0' |
[iv]
|
| GEOID99 Height |
-31.73m |
|
Prominence Information
| Referenced Elevation + Summit Error |
3849' |
| Elevation of Key Saddle (NGVD29) |
740 |
| Key Saddle Interval (error range) |
20 |
| Key Saddle Location |
37º 46' 42"N,
121º 39' 42"W |
| Key Saddle Description |
1 mi. NNW of Altamont Pass |
Lineage Information
| NHN (500' rule) |
Eylar Mtn. (Copernicus Cell)
|
| NHN (2000' rule) |
Copernicus Peak |
| PP (Prominence Parent) |
San Benito Mtn. |
| IP (Island Parent) |
Mt. McKinley |
| Lineage Group (Level 2 - Ultras) |
Pinos sub Whitney |
Promline
|
Diablo: San Benito:
Pinos: Whitney
|
Other Mountain Metrics
| Insularity (Dominance) |
80.7% |
|
| Isolation (distance to higher ground) |
34.3 mi.
|
courtesy Greg Slayden |
| Isolation (Location) |
Eylar Mtn. (SE) |
unverified |
Total View Area
|
coming soon
|
Access Information
| Ownership |
California State Park |
vii
|
| Access |
Public, from within park
|
Information not guaranteed |
Road
|
Paved Road to Top
|
|
Shortest distance and Gain to Summit (RT)
|
100 ft. |
|
| Class (YDS) |
1 |
|
| Notes |
Original summit is preserved inside museum.
Miles of trails on mountain.
|
|
General
Information:
Mount Diablo is the highest point in Contra
Costa
County. Widely visible from all
over the Bay Area and the Central Valley, the summit is rumored
(incorrectly) to have the greatest viewshed in the country and second
greatest in the world. Mount Diablo is the
base meridian for
most of Central and Northern California and Nevada.
Links:
California
State Park
website
Summitpost.org
Maps of
all
P500 summits on the cell: Diablo
Cell Map
List of
all P500 summits on the cell:
