If you are looking for options other than camping on site at the venue, there are a wide variety of options in the city of Mount Shasta. 

There are many free campgrounds in the area, as well as nice homes with rooms for rent. Check for availability on Airbnb & Hipcamp. 

The spring/summer is high traffic season here and places book up fast! Please make reservations ASAP.

The Chamber of Commerce has the most extensive website listing different types of accommodations:

Chamber of Commerce: https://visitmtshasta.com/stay/

Additional Suggestions:

Mount Shasta Resort: https://mountshastaresort.com

Inn at Mount Shasta: https://innatmountshasta.com

Best Western: https://bestwestern.com

Loge: https://www.logecamps.com/mtshasta-ca