Texas - Area of significance: Exploration/Settlement
| Allen Water Station |
| Archeological Site No. 41 HZ 284 |
| Archeological Site No. 41 HZ 299 |
| Archeological Site No. 41 HZ 304-305 |
| Archeological Site No. 41 HZ 312 |
| Archeological Site No. 41 HZ 445 |
| Arnold-Rauch-Brandt Homestead |
| Aue Stagecoach Inn |
| Aynesworth-Wright House |
| Badu Building |
| Barnard's Mill |
| Bekken, J. H., House |
| Brandhagen Houses |
| Brogdon Farm |
| Bronstad House |
| Brooks-Wilbarger House |
| Bryson Stage Coach Stop |
| Bullis' Camp Site |
| Burleson-Knispel House |
| Burro Mesa Archeological District |
| Butterfield Overland Mail Corridor |
| Carmelite Monastery |
| Chambersea |
| Chavez City Ruins (41OL253) |
| Chavez Suburbs East and West (41OL254) |
| Clarksville Historic District |
| Colorado County Courthouse Historic District |
| Colwick, John and Mary, Farm |
| Comal Springs |
| Cooper's Canyon Site 41 GR 25 |
| Copperas Cove Stagestop and Post Office |
| Cotulla Ranch |
| Dahl, Peder, Farm |
| de Montel, Charles, House |
| D'Hanis Historic District |
| Doan's Adobe House |
| Dolores Nuevo |
| Dolores Viejo |
| D'Ortolan, Bernardo, Rancho Site |
| D'Ortolan, Raphael, Site |
| Durazno Plantation |
| Eckhardt Stores |
| El Fortin del Cibolo Historic District |
| Ellingson Farm |
| El Sal Del Rey Archeological District |
| Erickson, Even and Petrine, Farm |
| Espada Aqueduct |
| Finstad, Ole and Elizabeth, Homesite |
| Fort Anahuac |
| Fort Belknap |
| Fort Clark Historic District |
| Fort Concho Historic District |
| Fort Davis National Historic Site |
| Fortin de la Cienega |
| Fort Inge Archeological Site |
| Fort St. Louis Site |
| Fredericksburg Historic District |
| Glen Rose Downtown Historic District |
| Godager, Adolf and Christine, Homesite |
| Good, Isham Jones, Homestead |
| Goodnight, Charles and Mary Ann (Molly), Ranch House |
| Griffin Site (41OL246) |
| Grimland, Gunsten and Lofise, House |
| Grimland, Keddel and Liv, Farm |
| Halley, Capt. Robert, House |
| Hall, Robert, House |
| Hardscramble |
| Harrison, John S., House |
| Heermann Store |
| Heidemann Ranch |
| Herrera Ranch |
| Hoff-Ulland Farm |
| Honey Creek Historic District |
| Hoxey, Asa, House |
| Huebner-Onion Homestead and Stagecoach Stop |
| Immaculate Conception Church |
| International Boundary Marker |
| Jenson, James Jens and Martha, House |
| Johnson, Joseph F., House |
| Johnson, Rod, Site |
| Jones Farm |
| Jureczki House |
| Kappelmann-Mayer Ranch |
| Kenney's Fort Site (41WM465) |
| Killeen Downtown Historic District |
| King Ranch |
| Knudson, Christen and Johanne, Farm |
| Korus Farmstead |
| Krause House |
| Kyle, Claiborne, Log House |
| Lahlum, A. H., House |
| La Junta de los Rios Archeological District |
| La Lomita Historic District |
| La Morita Historic District |
| Larson, Martin, House |
| Linberg, Eric and Martha, Farm |
| Lobanillo Swales |
| Main and Military Plazas Historic District |
| Main and Military Plazas Historic District |
| Manlove, Bartholomew, House |
Data from United States Park Service and Wikidata