https://feature.geographic.texas.gov/arcgis/rest/services/Geologic_Database/Geologic_Atlas_Index/MapServer https://feature.geographic.texas.gov/arcgis/rest/services/Geologic_Database/GeologicDatabaseofTexas_250k/MapServer https://feature.geographic.texas.gov/arcgis/rest/services/Geologic_Database/GeologicDatabaseofTexas/MapServer