English: How old is Grand Canyon? How did it form? The exhibits at Yavapai Geology Museum (originally named Yavapai Observation Station) hold the answer to these and other geology questions.

Open daily from 8 am to 6 pm, the historic building, located one mile (1.6 km) east of Market Plaza, features expansive canyon views through large picture windows.

Displays include three-dimensional maps and models, powerful photographs, and exhibits which allow visitors to see and understand the complicated geologic story of the area.

The museum store offers a variety of books about the area and souvenir items. Ranger programs often begin here. Check the park calendar for today's schedule of events: www.nps.gov/grca/planyourvisit/calendar.htm

The original structure, which was first dedicated in July 1928, was designed by architect Herbert C. Maier. The building was erected on a site selected by a team of geologists for the express purpose of observing and understanding Grand Canyon geology. Maier designed the Yavapai Point Trailside Museum to blend into its setting, and used indigenous Kaibab limestone and ponderosa pine in its construction. NPS photo/M. Quinn

img alt="An irregularly-shaped one-story building, approximately 40-feet (12 m) deep by 65-feet (20 m) wide; exterior walls and foundation are made of uniformly-sized limestone boulders."