Upper Allen Township and Keystone Marker Trust, a non-profit organization, have collaborated to restore the historic Shepherdstown Keystone Marker located on the Gettysburg Pike.
Each NHL game features 60 minutes of playing time, broken down into three 20-minute periods. The league also mandates a 17-minute intermission after the first and second periods to flood and ice and provide the players with a rest period.
Regulation play for a regular season game is 60 minutes long. Three 20 minute periods. 5 minutes for 1 overtime period if necessary(tie game). Playoff hockey is the same except that overtime periods are 20 minutes in length and more periods added until game is decided.(sudden death).