Idaho's largest public observatory is at Bruneau Dunes State Park along the shore of a little lake and surrounded by dunes, sagebrush desert and grassy flats. Visitors to the observatory watch a short orientation program and then gaze at the heavens through one of the observatory's telescopes. The popular observatory is open on Friday and Saturday evenings. Seating is limited for the audiovisual program and guests are accommodated on a first-come, first-served basis. The Bruneau Dunes visitor center offers information on birds of prey, insects, fossils, wildlife and the dunes. Bird watching, fishing and climbing are other popular pastimes at the state park.


Southwestern Idaho, 18 miles SW of Mountain Home


18 mi. SW of Mountain Home near Bruneau

Nearest City


Street Address

27608 Sand Dunes Rd
Mountain Home ID, 83647

Mailing Address

27608 Sand Dunes Rd
Mountain Home ID, 83647


Summer, Fall, Spring


Every Friday & Saturday evening. The season begins the first weekend in April and runs through mid-October. Solar viewing begins one hour before sundown. Sky viewing, through several telescopes, takes place until about midnight.


Admission to Park is $5 per vehicle and Observatory viewing fee is $3 per person (cash or checks only). Children age 5 and under are free.


Boating Facilities, Campsites, Dump Station, Gift Shop, Handicap Access, Horse Facilities, Motor Coach Parking, Parking, Restrooms, Visitor Center

What's Nearby

More travel related services »