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We present the results of spectroscopy of 71 objects with steep andultra-steep spectra ($\alpha<-0.9$, $S\propto\nu^\alpha$) from the "Big Trio"(RATAN-600-VLA-BTA) project, performed with the "Scorpio" spectrograph on the6-m telescope of the Special Astrophysical Observatory (Russian Academy ofSciences). Redshifts were determined for these objects. We also present severalother parameters of the sources, such as their R-magnitudes, maximum radiosizes in seconds of arc, flux densities at 500, 1425, and 3940 MHz, radioluminosities at 500 and 3940 MHz, and morphology. Of the total number of radiogalaxies studied, four have redshifts 1<z<2, three have 2<z<3, one has 3<z<4,and one has z=4.51. Thirteen sources have redshifts 0.7<z<1 and 15 have0.2<z<0.7. Of all the quasars studied, five have redshifts 0.7<z<1, seven have1<z<2, four have 2<z<3, and one has z=3.57. We did not detect any spectrallines for 17 objects.

Spectroscopy of "Big Trio" objects using the "Scorpio" spectrograph of the 6-m telescope of the Special astrophysical observatory