Freight guidance By Brian Schmidt | August 30, 2021 | Last updated on August 7, 2025 Email Newsletter Get the newest photos, videos, stories, and more from Trains.com brands. Sign-up for email today! Get Updates Freight guidance Early covered hopper loaders were modified from boxcar loaders, often requiring workers to climb car ladders for access. This elevator is at Glenwood, Minn., in 1984. Bob Wise photo