Lake Hennessey
Lake Hennessey is a reservoir in the Vaca Mountains, east of St. Helena and the Napa Valley, within Napa County, California. The reservoir is formed by Conn Creek Dam, built in 1948 across Conn Creek.
- Reservoir
- …has a surface elevation of 318 feet (97 metres)
- …is also known as “Conn Valley Reservoir”
- Description: lake of the United States of America
Places in the Area
Nearby places include Rutherford and Zinfandel.
Lake Hennessey
- Categories
- Location
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Latitude
38.49001° or 38° 29′ 24″ north
Longitude
-122.37214° or 122° 22′ 20″ west
Open location code
84CVFJRH+24
GeoNames ID
Wikidata ID
Satellite Map
See this place from above in high-definition satellite imagery.
In Other Languages
From Cebuano to Welsh—“Lake Hennessey” goes by many names.
Localities in the Area
Explore places such as Chiles Valley and Thoman.
Notable Places Nearby
Discover Conn Dam and Sage Canyon.
Curious Reservoirs to Discover
Uncover intriguing reservoirs from every corner of the globe.
“The world is so empty if we think of it only as mountains, rivers, and cities; but to know someone here and there who is in harmony with us… makes this earth an inhabited garden.”
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