Stennis Space Center Lock and Bridge

Lock & Bridge: (Satellite)

NASA B-1/B02 Test Stand: (Satellite)

The center has naval activities as well as space activities. [installations]

NASA's John C. Stennis Space Center posted
A Saturn V S-II-3 rocket stage passes through the lock and bridge system at Stennis Space Center, then-Mississippi Test Facility, at sunset on May 5, 1968.
Douglas Butler shared

By NASA/SSC - NASA 87-436-87 via wikipedia, Public Domain
"The NASA tugboat Clermont II transports liquid oxygen to the base of the B-1 Test Stand at Stennis Space Center. Stennis was NASA's facility for testing all Space Shuttle Main Engines before flight. Liquid hydrogen and liquid oxygen are used as fuel for the engines."

Sonia Wilson, Mar 2018, cropped

 

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Pinar Morre, Jan 2020

Just Travelin' Thru, Oct 2019, cropped
[Actually, you can't just travel through. Even the bridge and lock are behind a gated entrance. Thus no Google street views.]

Interstellar News posted, cropped
This photograph is a view of the Saturn V S-IC-5 (first) flight stage being hoisted into the S-IC-B1 test stand at the Mississippi Test Facility (MTF), Bay St. Louis, Mississippi. Begirning operations in 1966, the MTF has two test stands, a dual-position structure for running the S-IC stage at full throttle, and two separate stands for the S-II (Saturn V third) stage. It became the focus of the static test firing program. The completed S-IC stage was shipped from Michoud Assembly Facility (MAF) to the MTF. The stage was then installed into the 124-meter-high test stand for static firing tests before shipment to the Kennedy Space Center for final assembly of the Saturn V vehicle. The MTF was renamed to the National Space Technology Laboratory (NSTL) in 1974 and later to the Stennis Space Center (SSC) in May 1988.

Rob Dyck: S-II was the second stage of a Saturn V. The third stage was called S-IVB.