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  Restoration of the Mariposa Grove of Giant Sequoias
 Left photo shows the new Mariposa Grove Welcome Plaza and signs, the right photo shows a new trail and boardwalk in the Grove.Left: Exhibits and bus stop at the Mariposa Grove Welcome Plaza post restoration project. Right: New trail and boardwalk in Mariposa Grove after restoration. Al Golub

The national park idea is rooted in the Mariposa Grove of Giant Sequoias, located in the southern end of Yosemite National Park. Since it was first protected in 1864, it has been a primary destination for many. In 2011, we embarked on a plan to restore giant sequoia habitat in the Mariposa Grove. After a multi-year process with input from the public and staff, a final restoration plan was formalized through the Mariposa Grove Restoration Project Final Environmental Impact Statement at the end of 2013.
The implementation of this project was made possible by generous donations from the Yosemite Conservancy. On June 30, 2014, the 150th anniversary of the Yosemite Grant Act, the Yosemite Conservancy joined the National Park Service to break ground on this major collaborative effort to restore Mariposa Grove. Their donors and the National Park Service each provided $20 million for the $40 million project. The Mariposa Grove then closed in the spring of 2015 in order to fully complete this project which was the largest restoration project in the park's history.
The two primary goals of this project were to improve giant sequoia habitat and visitor experience. This included addressing the declining conditions of the Grove and nearby South Entrance that were adversely affecting the ecological health of the sequoias (e.g., roads, trails and other buildings encroaching on roots of the ancient trees, hydrology issues). The Mariposa Grove re-opened on June 15, 2018.
Some of the restoration project highlights include:
Restoring giant sequoia and associated wetland habitat
Realigning roads and trails that were located in sensitive sequoia habitat
Constructing a welcome plaza near South Entrance, which allowed for the relocation of the parking area from Mariposa Grove
Adding a shuttle service between the Mariposa Grove Welcome Plaza and Mariposa Grove Arrival Area
Building accessible trails to allow for improved access without impacting sequoias and other sensitive areas
Restoring natural hydrology
Improving orientation and wayfinding
Removing commercial activities from the Grove such as the gift shop and tram tours

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Duration:3 minutes, 55 secondsThe Mariposa Grove reopened in June, 2018, after being closed three years for restoration. Crews improved habitat for sequoias by removing parking lots and roads,  and restoring the natural flow of water to the trees. Parking was relocated two miles away from the grove, and is connected by shuttle buses. The restoration also added accessible trails and improved bathrooms.  This was the largest restoration project in the history of the park.
 Last updated: May 6, 2021
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