Gilhooley Tower is a basalt spire in the Olympic Mountains and is located in Jefferson County of Washington state. It is situated in Olympic National Park on the Olympic Peninsula. Its nearest higher peak is Mount Deception at 0.13 mi (0.21 km) to the southeast.[1] Precipitation runoff drains into tributaries of the Dungeness River and Dosewallips River.

Gilhooley Tower
Gilhooley Tower
Highest point
Elevation	7,480 ft (2,280 m)[1]
Prominence	120 ft (37 m)[1]
Coordinates	47°48′58″N 123°14′14″W[1]
Geography
Gilhooley Tower Location of Gilhooley Tower in Washington Show map of Washington (state) Gilhooley Tower Gilhooley Tower (the United States) Show map of the United States
Location	Jefferson County, Washington, US
Parent range	Olympic Mountains
Topo map	USGS Mount Deception
Geology
Age of rock	Eocene
Type of rock	basalt
Climbing
First ascent	1963 by Donald Anderson, Harold Pinsch, Joyce Pinsch[2]
Easiest route	Climbing class 4

Climate

Gilhooley Tower is located in the marine west coast climate zone of western North America. Most weather fronts originate in the Pacific Ocean, and travel northeast toward the Olympic Mountains. As fronts approach, they are forced upward by the peaks of the Olympic Range, causing them to drop their moisture in the form of rain or snowfall (Orographic lift). As a result, the Olympics experience high precipitation, especially during the winter months in the form of snowfall. During winter months, weather is usually cloudy, but, due to high pressure systems over the Pacific Ocean that intensify during summer months, there is often little or no cloud cover during the summer. Because of maritime influence, snow tends to be wet and heavy, resulting in high avalanche danger.

References

External links

• "Olympic National Park". National Park Service.
• Gilhooley Tower weather: Mountain Forecast

Gallery

• 
  Gilhooley Tower at far left. Mount Johnson centered, and Martin Peak to right
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  Gilhooley Tower to right