Marvel is a census-designated place (CDP) and post office on the Southern Ute Indian Reservation in southwestern La Plata County, Colorado, United States.

[6] The Marvel area was homesteaded in the late-1800s and early-1900s with ranching, farming, and oil extraction being the main economic drivers in the region.

[7] The area around Marvel is very dry and the region becomes more and more arid as one travels towards the New Mexico border and further away from the La Plata mountains.

While the town lies within the Reservation, the land within and around the town is owned by private landowners and the reservation proper only starts several miles to the South and East of Marvel.

At the 2020 United States Census, the Marvel CDP had an area of 85 acres (0.345 km2), all land.