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We have used the 45-m telescope for mapping two CO broad wing sources NGC 2071 and GL490 with a 15″ beam in the J = 1-0 line. We obtained 250 CO and 130 13CO spectra for NGC 2071 and 150 CO spectra for GL490. The observations were made with the highest angular resolution for the CO line and, as well, cover the whole extent of the outflows. The results reveal significant details of the angular distribution of the CO wings.