Fort Raleigh City Fort Randall Fort Randolph Fort Ransom Fort Recovery Fort Redoubt Fort Revere (subdivision) Fort Reynolds Fort Rice Fort Richardson Fort Ripley Fort Ritner Fort River Caves (subdivision) Fort Robertson Fort Robinson Fort Rock Fort Romie Fort Rosecrans Fort Ross Fort Run Fort Saint Charles Fort Saint Phillip Fort Saint Vrain (historical) Fort Salonga Fort San Carlos Fort Saulsbury Fort Scammel Fort Scott Fort Scott Fort Screven Fort Sedgwick (historical) Fort Selden Fort Seneca Fort Seward Fort Seybert Fort Shaw Fort Shawnee Fort Smith Fort Smith Fort Smith Fort Spokane Fort Spring Fort Spring Fort Spunky Fort Standish Fort Stanton Fort Steele Fort Stewart Fort Stockton Fort Stoddard