Northern Pacific Engineering Drawing: Detail of Abutment, Bridge 21 - Irrigation Canal, west of Laurel, Montana, Line Segment 041, Milepost 21.9. Sheet 1056 - 17, 1917. Note: Concrete slab

Northern Pacific Engineering Drawing: Rail Welding Plant Building at Laurel, Montana, prepared in 1970. Burlington Northern File Number 9787-E1, Reference Number 10111.

Northern Pacific Engineering Drawing: Rail Welding Plant Building at Laurel, Montana, prepared in 1970. Burlington Northern File Number 9787-M1, Reference Number 10110.

Northern Pacific Engineering Drawing: Rail Welding Plant Building Void at Laurel, Montana, prepared in 1971. Burlington Northern File Number 9787-E2, Reference Number 10104.

Northern Pacific steam locomotive 1185 at Laurel, Montana, in December 1934. Number 1185, a class G-2 built by Alco-Brooks in 1920, is parked at the roundhouse. Photo by Herman Hunt, J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roundhouse

Northern Pacific steam locomotive 1186 switching cars at Laurel, Montana, circa 1950. Number 1186 is a class G-2 built by Alco-Brooks in 1920 J.M. Fredrickson collection. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1186 at Laurel, Montana, on August 17, 1949. Number 1186 is a class G-2 built by Alco-Brooks in 1920. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1186 at Laurel, Montana, on August 17, 1949. Number 1186 is a class G-2 built by Alco-Brooks in 1920. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1186 at Laurel, Montana, on September 04, 1953. Number 1186 is a class G-2 built by Alco-Brooks in 1920. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1187 at Laurel, Montana, on August 17, 1949. Number 1187 is a class G-2 built by Alco-Brooks in 1920. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1187 at Laurel, Montana, on May 21, 1954. Number 1187 is a class G-2 built by Alco-Brooks in 1920. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1190 at Laurel, Montana, on August 17, 1949. Number 1190 is a class G-2 built by Alco-Brooks in 1920. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1191 at Laurel, Montana, on August 17, 1949. Number 1191 is a class G-2 built by Alco-Brooks in 1920. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1191 at Laurel, Montana, on September 04, 1953. Number 1191 is a class G-2 built by Alco-Brooks in 1920. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1191 at Laurel, Montana, on September 04, 1953. Number 1191 is a class G-2 built by Alco-Brooks in 1920. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1191 at Laurel, Montana, on May 21, 1954. Number 1191 is a class G-2 built by Alco-Brooks in 1920. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1192 at Laurel, Montana, on August 17, 1949. Number 1192 is a class G-2 built by Alco-Brooks in 1920. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1192 at Laurel, Montana, on September 04, 1953. Number 1192 is a class G-2 built by Alco-Brooks in 1920. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1193 at Laurel, Montana, on September 04, 1953. Number 1193 is a class G-2 built by Alco-Brooks in 1920. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1530 at Laurel, Montana, on September 04, 1954. Number 1530 is a class W built by Alco-Brooks in 1905. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1568 at Laurel, Montana, on September 04, 1953. Number 1568 is a class W built by Alco-Brooks in 1906. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1627 at Laurel, Montana, on September 04, 1953. Number 1627 is a class W built by Alco-Brooks in 1907. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1627 at Laurel, Montana, on May 21, 1954. Number 1627 is a class W built by Alco-Brooks in 1907. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1627 at Laurel, Montana, on May 21, 1954. Number 1627 is a class W built by Alco-Brooks in 1907. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1696 at Laurel, Montana, on May 21, 1954. Number 1696 is a class W-1 built by Alco-Schenectady in 1910. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1717 at Laurel, Montana, on September 04, 1953. Number 1717 is a class W-3 built by Alco-Brooks in 1913. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1717 at Laurel, Montana, on May 21, 1954. Number 1717 is a class W-3 built by Alco-Brooks in 1913. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1908 at Laurel, Montana, on August 17, 1949. Number 1908 is a class W-2 built by Alco-Brooks in 1904. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1908 at Laurel, Montana, on August 17, 1949. Number 1908 is a class W-2 built by Alco-Brooks in 1904. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo

Northern Pacific steam locomotive 1908 at Laurel, Montana, on September 04, 1953. Number 1908 is a class W-2 built by Alco-Brooks in 1904. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive in roster photo