Overview of Zagorski Static Test Center (run by the Isayev OKB) northeast of the city Zagorsk, in the Moscow region. This is Russia's Mississippi test facility where all of the N1's upper stages were static test-fired and where many of the L-3 components were also static test-fired. It also served as the Static Test Center for many Spacecraft and Strategic Rockets, including MRBMs, IRBMs, and ICBMs, SLBMs.