Organization: National Park ServiceLocation: 1849 C St NWWashington, DC, 20240United StatesSee map: Google MapsPhone:202-208-6843 2025 Free Entrance Days in the National ParksDates: 04/19/202506/19/202508/04/2025Show more datesHide these dates09/27/202511/11/2025Time: See website for details. Evelyn's Park Conservancy Organization: Buffalo Soldiers National MuseumLocation: 3816 CarolineHouston, TX, 77004United StatesSee map: Google MapsPhone:713-942-8920 Juneteenth@160Dates: 06/19/202506/20/202506/21/2025Time: see website Lagoonfest Texas