Beale AFB, about 35 miles north of Sacramento, CA, is home of the 9th Reconnaissance Wing which operates most of the nation's U-2 and of the 12th Reconnaissance Squadron which operates unmanned RQ-4 Global Hawk reconnaissance aircraft. It is also home to the newly reactivated 427th Reconnaissance Squadron. That unit is thought to operate the mysterious high-tech reconnaissance UAV dubbed RQ-180. An aircraft likely developed and tested at Area 51 and believed to be operational since 2017. Still, even its true designation is elusive, let alone any photos of it.
Soon after the 427 RS was reactivated they co-hosted the opening ceremony for the new Common Mission Control Center (CMCC) at Beale is 2019. Around the same time an existing hangar at the north end of the base was improved, a fuel tank added and a new security fence was installed separating that hangar from the rest of the base. While it is believed that the operational fleet of RQ-180 is stationed at Edwards AFB South Base it is quite possible that it is operated by the 427 RS via the new CMCC from Beale. The newly secured hangar may hold a pre-production model for tests and hands-on training. Parts of the CMCC may or may not be in that hangar as well. Scroll down to see a close-up of the potential RQ-180 hangar.
The photos were taken on Sunday, June 21, 2020. Publication on Dreamland Resort with friendly permission. Click in the photos to enlarge.
Beale Air Force Base - Official USAF Home Page
Wikipedia: Beale Air Force Base
Aviation Week: USAF Unit Moves Reveal Clues To RQ-180 Ops Debut