[3] While the name Valentine Plains might suggest relatively flat land, the terrain is mountainous ranging from 180 to 860 metres (590 to 2,820 ft) above sea level with a number of named peaks:[3] The lower elevations are to be found near Biloela and along Callide Creek and Kroombit Creek with elevations generally increasing further to the east.

[3] The south-east of the locality is within Kroombit Tops National Park, which extends into neighbouring Tablelands and Cania and beyond to Boyne Valley.

[7] Apart from this protected area, the predominant land use is grazing on native vegetation with some crop growing on the lower elevations in the west of the locality.

[11] On 2 August 1994, the wreckage of a United States Army Air Forces Consolidated B-24D Liberator, Beautiful Betsy, was discovered in the Valentine Plains section of Kroombit Tops National Park.

The aircraft had gone missing in stormy weather on 26 February 1945 while on a "Fat Cat" run from Darwin to Brisbane - transporting men and supplies as part of a regular flight.

[12] Eight servicemen lost their lives; six of the men were American aviators and two were British Royal Air Force Spitfire pilots.