Thunderbolt Peak is a peak in the Palisades group of peaks in the Sierra Nevada in the U.S. state of California. It rises to 14,009 feet (4,270 m) and could be considered the thirteenth-highest peak in the state, but since the peak has less than 300 feet (91 m) of prominence it is usually considered a subsidiary peak of North Palisade.[7] But if it is considered a separate mountain peak, Thunderbolt Peak is the northernmost fourteener in the Sierra Nevada.
| Thunderbolt Peak | |
|---|---|
Polemonium, North Palisade, Starlight, Thunderbolt Peaks | |
| Highest point | |
| Elevation | 14,009 ft (4,270 m) NAVD 88[1] |
| Prominence | 203 ft (62 m)[1] |
| Parent peak | North Palisade[2] |
| Listing | |
| Coordinates | 37°05′53″N 118°31′03″W[5] |
| Geography | |
Thunderbolt Peak California | |
| Location | Fresno / Inyo counties, California, U.S. |
| Parent range | Sierra Nevada |
| Topo map | USGS North Palisade |
| Climbing | |
| First ascent | August 13, 1931 by Robert Underhill, Norman Clyde, Bestor Robinson, Francis Farbquar, Glen Dawson, Lewis Clark and Jules Eichorn[6] |
| Easiest route | Technical climb, class 4, by several routes[6] |
The first ascent was attempted by a party of very well-known climbers. During the climb, a lightning bolt struck very close to Jules Eichorn, breaking his concentration. The mountain was named in commemoration of this event.[6]

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