This document provides a comprehensive report on a company's activities throughout the preceding year.

Gas Transmission Northwest (GTN) is a 1,377-mile (2,216-km) pipeline system that transports Canadian natural gas to communities in Washington, Idaho, Oregon and California.

For close to 50 years, Canadians have recognized Environment Week across the country. In 2017 TransCanada is celebrating some of the amazing work our environmental partners are doing across North America. From protecting ecologically significant habitat to encouraging environmental stewardship among our youth, these partners do great work we're proud to be a part of.