It's a small village of Tohono O'odham Nation. It's located 5 miles southeast of Kaka and 20 miles southwest of Table Top Mountain. Below is a google earth map of Ventana. 2010 census reported Ventana to have a population of 49. There are 29 housing units in Ventana, with 15 lived in. Average household size is 3.3 persons per housing unit. Ventana does not have an appearance of a town. It is a cdp or census designated place.
Google Earth Map of Ventana