Overview of G35.20-0.74 N imaged by Spitzer, APEX, JVLA, and ALMA at various scales. First row-left: Spitzer 4.6 μm emission (Benjamin et al. 2003) obtained by IRAC overlaid with a green contour map of the 870 μm continuum emission from the ATLASGAL survey (Csengeri et al. 2014). The unit of the color wedge is MJy sr⁻¹ in IRAC map. The APEX 870 μm contours start from 3σ, and are then 6σ, 12σ, and 24 σ, where σ =90 mJy beam⁻¹. The dashed yellow and red circles are of 1' and 2' in diameter, with the latter being the VLA primary beam. First row-right: Same Spitzer 4.6 μm emission overlaid with green contours showing the integrated intensity map of NH₃ (1,1) and black contours showing 1.2 cm continuum emission from our observations. The green contours start from 5 σ, and are then 10σ, 15σ, and 20 σ, where 1σ is equal to 1.2 mJy beam⁻¹. The black contours start from 6σ, and are then 20σ, 48σ, 80σ, 130σ, 180σ, and 230 σ, where 1σ is equal to 18 μJy beam⁻¹. Blue arrows show the direction of the CO outflow (Birks et al. 2006). Second row: Same VLA 1.2 cm continuum in color scale overlaid with ALMA 870 μm continuum emission in green contours. The color bar is in units of mJy beam⁻¹. Green contours are from 9 to 230 mJy beam⁻¹ with a step of 1.8 mJy beam⁻¹. Cores A-F are marked following Sánchez-Monge et al. (2014).