By geographical conditons I mean such things as the surface of the land, rainfall, altitude, and temperature. Four distinct provinces make up New Mexico's land surface. These four are plains, mountains, plateau, and basin and range. The plains province is an extension of the Great Plains. The Great Plains form the western fringe of the North American lowland.
Plains are vast areas that are flat and treeless.
The plains in New Mexico cover the eastern third of the state. The plateau province is part of the Colorado Plateau. A plateau is an elevated area of mostly flat or level land. To the east of the Colorado Plateau lie the Rocky Mountains. To the west are the mountain ranges that run along the Pacific coast.