 The others include the Castle Rock Depot building, Castle Rock Elementary School building, First National Bank of Douglas County building, Samuel Dyer House, Benjamin Hammer House, and Keystone Hotel building.A dispute about whether the Castle Rock Police Department was required to enforce a civil restraining order was decided by the U.S. Supreme Court in 2005.The court held, in "Town of Castle Rock v. Gonzales", that a municipality cannot be held liable under a federal civil rights statute, 42 U.S.C.