Visit the Comanche National Grassland during the yearly tarantula migration when tarantulas appear en masse in Southeast Colorado.

For species that are present in Southeast Colorado the migration of the adult males take place from late August through September (into early October) and it is at this time of the season when Colorado tarantulas are most often observed.

The first time visitor to the Comanche National Grassland is usually surprised to find such a varied landscape from rolling short grass prairies to rugged canyons rimmed by pinion-juniper forests.