Tape 7, Side 1. In the fourth interview session, conducted on February 8, 2001, McArthur shares his memories of the Columbia River before the construction of hydroelectric dams, and talks about how the Columbia River Gorge changed. He briefly discusses serving on the state advisory committee on historic preservation in the 1970s, and then talks about his recreational activities on Mount Hood, including climbing and camping on the mountain, and repairing the Snowshoe Cabin, the Cloud Cap Inn, and other buildings.

Tape 8, Side 2. In the fourth interview session, conducted on February 8, 2001, McArthur shares his memories of the Columbia River before the construction of hydroelectric dams, and talks about how the Columbia River Gorge changed. He briefly discusses serving on the state advisory committee on historic preservation in the 1970s, and then talks about his recreational activities on Mount Hood, including climbing and camping on the mountain, and repairing the Snowshoe Cabin, the Cloud Cap Inn, and other buildings.

Tape 9, Side 2. In the fifth interview session, conducted on February 15, 2001, McArthur discusses his role models, including his family members, and talks about construction projects that impressed him, including dams on the Columbia River and the Bay Bridge in California. He also speaks about mapmaking. He shares his childhood memories of attending meetings of the Pioneer Association, riding the streetcar, and traveling with his family. He compares travel by various modes of transportation, particularly air and rail. He revisits the topic of his father's work on Oregon Geographic Names, then speaks at length about his own work on later editions of the book and about his service on the state advisory committee on historic preservation. He describes his favorite places in Oregon, and talks about raising a family.

Tape 11, Side 1. In the fifth interview session, conducted on February 15, 2001, McArthur discusses his role models, including his family members, and talks about construction projects that impressed him, including dams on the Columbia River and the Bay Bridge in California. He also speaks about mapmaking. He shares his childhood memories of attending meetings of the Pioneer Association, riding the streetcar, and traveling with his family. He compares travel by various modes of transportation, particularly air and rail. He revisits the topic of his father's work on Oregon Geographic Names, then speaks at length about his own work on later editions of the book and about his service on the state advisory committee on historic preservation. He describes his favorite places in Oregon, and talks about raising a family.

Photograph looking down at Punchbowl Falls, located on the Eagle Creek Trail on the Oregon side of the Columbia River Gorge. Taken from a nearby hillside during recovery efforts for the body of Francis E. Foss (negative 6 of 9).

A map showing the location of a proposed interstate park in the Columbia River Gorge in relation to Pacific Northwest population centers. The map shows Washington, Oregon, Idaho, Montana, and parts of California, Nevada, Utah, and Wyoming. Black dots, each representing 100 persons, are scattered across the states of Oregon, Washington, Idaho, and Montana. Concentric circles in red denote distances in increments of 50 miles from an epicenter located over the Columbia River just east of Portland, Oregon.

A 2-page statement of delinquent taxes on blocks of property in Multnomah County, Oregon recommended for acquisition as part of a proposed interstate park in the Columbia River Gorge. For each piece of property, the owner's name, legal description, township & range, acreage, and years in arrears are listed. The property locations are found within the Latourell and Crown Point areas of the gorge.

7 pages of photographs show the areas under consideration for inclusion in a proposed interstate park in the Columbia River Gorge. 32 photos show the character of the terrain, scenic values, and existing development in the Cape Horn, Beacon Rock, Little White Salmon River, and Latourell areas of the gorge.

A twelve-page report authored by John B. Yeon, chairman of the Pacific Northwest Regional Planning Commission's Columbia Gorge Committee, written to Mr. Lawrence Merriam, regional officer for the National Park Service's State Park Division, on the subject of a proposed interstate park in the Columbia River Gorge along both sides of the Columbia River. In the report, Yeon requests the support of the National Park Service in purchasing non-agricultural land to establish the park. Yeon describes five specific areas in the Gorge where the proposed land would be purchased: Cape Horn, Beacon Rock, White Salmon, Latourell, and Crown Point.

A denuded hillside in the Columbia River Gorge during logging operations. I piece of machinery can be seen at the top, with pieces of timber falling down hill. Photograph taken as part of a series documenting the effort of the Portland Women’s Forum, Save the Gorge committee, to curtail logging in the area. A dirt road is in the foreground. Photographs from this series were published in the Oregon Journal on Sunday, April 6, 1952 (negative 2 of 23).

Two members of the Portland Women’s Forum, Save the Gorge committee, stand on a set of cement steps in front of an unidentified waterfall area. Water can be seen cascading down basalt. Photograph taken as part of a series documenting the effort of the Portland Women’s Forum, Save the Gorge committee, to curtail logging in the area. Photographs from this series were published in the Oregon Journal on Sunday, April 6, 1952 (negative 23 of 23).

People using machinery to drag logs downhill towards the historic Columbia River Highway, east of Latourell Falls. A house can be seen next to the road, with the Columbia River in the distance. Photograph taken as part of a series documenting the effort of the Portland Women’s Forum, Save the Gorge committee, to curtail logging in the area. A cropped version of this photograph was published in the Oregon Journal on Sunday, April 6, 1952 (negative 6 of 23).

People on a trail in front of Latourell Falls in the Columbia River Gorge. Water cascades down the basalt rock face, in front of a wooden bridge, seen at the right side of the frame. Members of the Portland Women’s Forum, Save the Gorge committee, wearings jackets and hats, walk with a group of men. Photograph taken as part of a series documenting the effort of the Portland Women’s Forum, Save the Gorge committee, to curtail logging in the area. Photographs from this series were published in the Oregon Journal on Sunday, April 6, 1952 (negative 9 of 23).

Members of the Portland Women’s Forum, Save the Gorge committee, including Gertrude Glutsch Jensen (second from left) speaking to a group of men outside a sawmill on the Columbia River Gorge. The building has been constructed on the side of a denuded hillside, with cut logs on the ground. Photograph taken as part of a series documenting the effort of the Portland Women’s Forum, Save the Gorge committee, to curtail logging in the area. Photographs from this series were published in the Oregon Journal on Sunday, April 6, 1952 (negative 5 of 23).

Photograph showing unidentified men using shovels and axes to clear snow from a road, possibly the Columbia River Highway. Deep snowbanks, taller than the men and a car behind them, line both sides of the road. The photograph may have been taken in February 1922. See related image Nos. 373G0518, 373G0519, 373G0520, 373G0522, 373G0523, 373G0524, 373G0525, 373G0526, 373G0527, 373G0528, and 373G0529. Image note: Photograph shows speckling due to deterioration of the negative.

Photograph showing a car on a road, probably the Columbia River Highway. Deep snowbanks, taller than the car, line the road on either side. An unidentified man is in the driver’s seat. The photograph may have been taken in February 1922. See related image Nos. 373G0518, 373G0519, 373G0520, 373G0522, 373G0523, 373G0524, 373G0525, 373G0526, 373G0527, 373G0528, and 373G0529.

The Needles, Columbia River, Oregon.

Lataurelle Bridge, Columbia River Highway.

Lataurelle Bridge, Columbia River Highway.

A group of men huddle around a rescue sled on the Eagle Creek Trail on the Oregon side of the Columbia River Gorge. A body bag lies on the ground next to them. Taken near Punchbowl Falls during recovery efforts for the body of Francis E. Foss (negative 9 of 9).

Debris in a room at the Multnomah Falls Lodge after a falling tree damaged the building during a heavy rain storm. The room appears to be a utility closet, with a work bench and paint cans visible through a doorway. Photograph from this series were published in the Oregon Journal on Thursday, December 10, 1953 (negative 1 of 9).

A damaged room at the Multnomah Falls Lodge, after a falling tree damaged the building during a heavy rain storm. Wooden lath can be seen underneath an area of damaged plaster, with two twins beds littered with building debris. Photograph from this series were published in the Oregon Journal on Thursday, December 10, 1953 (negative 3 of 9).