The Bentley Historical Library is open by appointment only for U-M faculty, students, and staff. Please see our full announcement here.

Detroit Observatory

bhl_hs2510_4074_2853_full__0_nativeThe Detroit Observatory was the first observatory built in the state of Michigan and is the second-oldest building still standing on UM’s campus. In 2005, the Detroit Observatory became a division of the Bentley Historical Library.

Information about the Detroit Observatory has moved to a new location.

Please visit the Detroit Observatory’s new website here