Valhalla Grand Hall on May 25 will be the site of a solo guitar performance by Alex DeGrassi.

The concert, co-sponsored by Sorensen’s Resort, is a benefit for the Sierra Nevada Alliance and the Sierra Fund, nonprofits working to protect the Sierra Nevada.

For more information and tickets, call the Alliance at (530) 542.4546, ext. 305.

A VIP reception starts at 6pm, with the concert at 7:30pm. General admission is $25, and VIP tickets are $100.

Valhalla is on the South Shore on Highway 89, just north of Camp Richardson.