15th Central Engineer Troops Research Testing Institute
Identification
The supplied coordinates are consistent with the wooded military-engineering belt southwest of Nakhabino, near Nikolo-Uryupino/Pozdnyakovo, where open-source mapping labels a "Site No. 6 of the 15th TsNIIII training ground." The same mapped cluster also shows Site No. 4, a military range, and the Interdepartmental Engineer Troops Training Center, which supports identifying this placemark as part of the former 15th institute’s distributed proving-ground area rather than an isolated facility. ([maps.lizaalert.ru](https://maps.lizaalert.ru/maps/2024-02-11_Nahabino/9-Map_4_print/2024-02-11_Nahabino_Topo_OTM_500m_z16_A1.pdf))
Institution role
Public histories describe the 15th Central Scientific Research Test Institute of Engineer Troops as one of the core research-and-test organizations of Russia’s engineer troops. Authoritative and semi-official sources trace its lineage to a military engineering proving ground created in 1919 and describe it as a center for development, testing, and adoption of engineer equipment and methods. ([heraldicum.ru](https://www.heraldicum.ru/russia/army/army51new.htm?utm_source=openai))
Current status
The institute name appears to be partly legacy by 2026. Sources summarizing Russian Government Order No. 508-r of March 1, 2023 state that, effective August 1, 2023, the institute and the International Mine Action Center were merged to re-create the Military Engineering Academy in Nakhabino, at ul. Karbysheva 2. Open-source map labels for the training grounds may therefore retain the older "15th institute" nomenclature after the parent organization’s reorganization. ([voen-pravo.ru](https://voen-pravo.ru/voennoe_pravo/documents/resolution/6911/?utm_source=openai))
Area infrastructure
Open-source material indicates this is a broader engineer-troop training and test zone. The mapped area includes polygon sites, a military range, the engineer-camouflage regiment area, and the Interdepartmental Engineer Troops Training Center; a recent academy history also notes training fields and mini-polygons equipped with engineer equipment at Nikolo-Uryupino. This supports assessing the placemark as one element of a larger Nakhabino/Nikolo-Uryupino military-engineering complex. ([maps.lizaalert.ru](https://maps.lizaalert.ru/maps/2024-02-11_Nahabino/9-Map_4_print/2024-02-11_Nahabino_Topo_OTM_500m_z16_A1.pdf))
Confidence and limits
Open sources reviewed for this briefing identify the broader proving-ground system, but they do not publicly verify the exact function, layout, or permanently assigned units/equipment of "Site No. 6" itself. The most defensible assessment is that the point belongs to the former 15th institute’s training-ground network in the Nakhabino area, with site-specific activity not publicly confirmed. ([maps.lizaalert.ru](https://maps.lizaalert.ru/maps/2024-02-11_Nahabino/9-Map_4_print/2024-02-11_Nahabino_Topo_OTM_500m_z16_A1.pdf))