South Dakota Game Fish and Parks is considering the idea of ending a longstanding no-wake restrictions on Deerfield Lake. The Lake is a popular location in the Black Hills. The regulation as it stands limits speeds up to five miles per hour for boats on the lake. The proposed change would increase that limit to 25 miles per hour. The proposal will be considered at GFP’s June sixth meeting in Pierre. The five miles per hour restrictions have been in place for the past 55 years at least.