Lake Hennessey

Lake Hennessey is a in the , east of and the Napa Valley, within . The reservoir is formed by Conn Creek Dam, built in 1948 across Conn Creek.
Tap on a place
to explore it
  • Type: Reservoir
  • Description: lake of the United States of America
  • Also known as: Conn Valley Reservoir

Places in the Area

Nearby places include Rutherford and Zinfandel.

Photo: Jim G, CC BY 2.0.
is a small township in the region of located between and , along Hwy 29. This area of the valley was originally owned by General Vallejo and through a series of gifts became the property of Thomas and Elizabeth as a wedding present 1964.

Hamlet
is a small unincorporated community in just south of the city of in the region of the . is situated 4 miles west of Lake Hennessey.

is a census-designated place in the Napa Valley of , northern . The population was 49 at the 2020 census. 's ZIP Code is 94562, and it is located in area code 707.

Lake Hennessey

Latitude
38.49001° or 38° 29′ 24″ north
Longitude
-122.37214° or 122° 22′ 20″ west
Elevation
318 feet (97 metres)
Open location code
84CVFJRH+24
Geo­Names ID
5364536
Wiki­data ID
Q6476142
This page is based on GeoNames, Wikidata, Wikimedia Commons, and Wikipedia.
We’d love your help improving our open data sources. Thank you for contributing.

Satellite Map

Discover Lake Hennessey from above in high-definition satellite imagery.

In Other Languages

From Cebuano to Welsh—“Lake Hennessey” goes by many names.
  • Cebuano: Lake Hennessey
  • French: Lake Hennessey
  • Welsh: Llyn Hennessey

Localities in the Area

Explore places such as Chiles Valley and Thoman.

Notable Places Nearby

Highlights include Conn Dam and Sage Canyon.

California: Must-Visit Destinations

Delve into San Francisco, Los Angeles, San Diego, and Sacramento.

Curious Places to Discover

Uncover intriguing places from every corner of the globe.
About Mapcarta. Text is available under the CC BY-SA 4.0 license, except for photos, directions, and the map. Description text is based on the Wikipedia page “Lake Hennessey”. Photo: Anthonysthwd, CC BY-SA 4.0.