After the construction of the administration building for the field practice forest was completed in 1923, the following facilities were built one after another: facilities such as work sites in the forest and fields for seedlings were established, a road for vehicles from Deai (a point branching from the present Kyoto Prefectural Road No.38 Kyoto Hirogawara Miyama Route) to the administration building in the field practice forest was laid out in 1925, the engineering work for laying out rails for a forest tramline from the administration building to Nanase, along the uppermost flow of the Yura-gawa River, was started in 1927, and rails were laid out between the administration building and Akazaki in 1934.
1923年に演習林事務所が建築されたのを皮切りに、林内での作業所や苗畑といった施設の設置が行われたほか、1925年には出合（現在の京都府道38号京都広河原美山線との分岐点）から演習林事務所に至る車道が開設され、1927年には由良川源流に沿って事務所から七瀬に至る森林軌道の軌道敷開削工事が開始、1934年には事務所～赤崎間にレールが敷かれた。