The county includes the Sangre de Cristo mountains to the west and open grassland to the east. Trinidad is the county seat and largest town with a population of approximately 8,580.
Major industries are agriculture, coal bed methane exploration, and recreation.
Agriculture is based on the livestock industry, with some irrigated farming near Trinidad, dryland farming in the eastern part of the county and mostly rangeland in the remainder of the county. Las Animas County has 16 4-H clubs involving 240 members and 58 volunteer leaders. Position is available April 17, 2001. To provide leadership, guidance, direction and implementation of Cooperative Extension Agricultural, Livestock, and 4-H Youth Development programs in Las Animas County. This includes serving as a knowledge resource person in agriculture and youth development.