Online registration is now open for the 2009 Thor Lake Whitney Spring Nationals. Online entries will have first choice of selecting their rider numbers during the sign-up process. Hook-up camp sites are also available for purchase through the online registration. We will not hold a lottery for the hook-up sites. These will be sold through the online registration process. Race date: March 9th - 15th. Go to www.lakewhitneymx.com to sign up.