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Yosemite Valley in Mariposa County, California — The American West (Pacific Coastal)
 

Happy Isles Gaging Station

 
 
Happy Isles Gaging Station Marker image. Click for full size.
Photographed By Adam Margolis, September 24, 2016
1. Happy Isles Gaging Station Marker
Inscription.  

Water-stage data recorded at this station are transmitted, via satellite, to the U.S. Geological Survey computer in Reston, Virginia.

The computed streamflow of the Merced River at Happy Isles Bridge is printed at a computer terminal in the office of the U.S. Geological Curriery, Water Resources Division, in Sacramento, California.

This is one of more than 7,000 streamflow stations in the United States operated by the U.S. Geological Survey. The station was selected as a national hydraulic benchmark because of its location in a national park on a stream large unaffected by the activities of man.

Water quantity and faulty data, collected at streamflow stations, are used in operations and planning for power development and for agricultural, industrial, municipal, and recreational uses of water.

At this site, water stage and temperature are recorded and water samples are collected for analysis of dissolved minerals and gases, trace metals, bacteria, and suspended sediment.

The water record at Happy Isles dates back to August 1915 when the station was first establish by the Geological
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Survey.
 
Erected by United States Geological Survey.
 
Topics. This historical marker is listed in these topic lists: Science & MedicineWaterways & Vessels.
 
Location. 37° 43.861′ N, 119° 33.516′ W. Marker is in Yosemite Valley, California, in Mariposa County. Marker can be reached from John Muir Trail south of Happy Isle Loop Road, on the left when traveling south. Touch for map. Marker is in this post office area: Yosemite National Park CA 95389, United States of America. Touch for directions.
 
Other nearby markers. At least 8 other markers are within 2 miles of this marker, measured as the crow flies. Glacier Point View Terrace (approx. 0.8 miles away); Glacier Point Hotel (approx. 0.8 miles away); Welcome to Glacier Point (approx. one mile away); Natural Dam (approx. 1.2 miles away); Mirror Lake Resources (approx. 1.2 miles away); Bracken Fern and Baskets (approx. 1.3 miles away); A Seasonal Lake (approx. 1.3 miles away); Visitors at Mirror Lake (approx. 1.3 miles away).
 
Happy Isles Gaging Station Marker image. Click for full size.
Photographed By Adam Margolis, September 24, 2016
2. Happy Isles Gaging Station Marker
Happy Isles Gaging Station Marker image. Click for full size.
Photographed By Adam Margolis, September 24, 2016
3. Happy Isles Gaging Station Marker
Happy Isles Gaging Station at the riverbed image. Click for full size.
Photographed By Adam Margolis, September 24, 2016
4. Happy Isles Gaging Station at the riverbed
Happy Isles Gaging Station image. Click for full size.
Photographed By Adam Margolis, September 24, 2016
5. Happy Isles Gaging Station
High Level Mark image. Click for full size.
Photographed By Adam Margolis, September 24, 2016
6. High Level Mark
A high level mark, indicating the water level during a flood in 1997. The sign is located directly behind the marker.
 
 
Credits. This page was last revised on February 26, 2022. It was originally submitted on February 15, 2022, by Adam Margolis of Mission Viejo, California. This page has been viewed 268 times since then and 32 times this year. Photos:   1, 2, 3, 4, 5, 6. submitted on February 15, 2022, by Adam Margolis of Mission Viejo, California. • J. Makali Bruton was the editor who published this page.

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May. 26, 2024