San Luis Valley and Sangre de Cristo Range, Colorado37.7N 105.8W
In this image of the state of Colorado, USA, an area of irrigated agriculture can be observed in the San Luis Valley, the green-dotted area surrounded by light tan terrain near the bottom center. Upon opening the full image, many individual fields are visible, a number of which are circular in shape.
The mountain range just northeast of these fields, running diagonally northwest to southeast, is the Sangre de Cristo (Blood of Christ) Range. It is a narrow range of the Rocky Mountains running along the east side of the Rio Grande Rift in southern Colorado.
At the foot of the range, between it and the San Luis Valley, is the Great Sand Dunes National Park and Preserve. The 85,000 acre (340 km², 130 mi²) park contains the tallest sand dunes in North America.