PECHORA  , a

river of N . Russia, rising in the Urals, almost on 62° N., in the government of Perm . It flows W. for a short distance, then turns N. and maintains that direction up to about 66° 20' N . It then describes a double loop, to N. and to S., and after that resumes its N. course, finally emptying into the Gulf of Pechora, situated between the White Sea and the Kara Sea . Its total length is 970 M . At its mouth it forms an elongated delta . Although frozen in its upper reaches for 190 days in the year and for 138 days in its lower reaches, it is navigable throughout the greater part of its course . Its drainage basin covers an area of 127,200 sq. m . The principal tributaries are, on the right, the Ilych and the Usa, and on the left the Izhma, the Tsylma and the Sula .