LIT The creator field is National Archives and Records Administration. The title is This place in time: The Mount St. Helens story. The date field is 1984. The identifier is gov.archives.arc.13504. Thirty-three files are catalogued. Three pictures sit in a 0.06 second band: an MPEG2 of 1,120,717,435 bytes at 1,377.89 seconds, and an Ogg video and a smaller MPEG4 both at 1,377.95 seconds. 1,377.95 seconds is 22 minutes and 57.95 seconds. RANGER keeps those three because each is longer than a million bytes and inside that band. A gif decoy with the same time stamp and a small size is rejected. Thirty files are dropped.
AMBER The eruption itself is commonly dated 1980. This page did not open a USGS bulletin to re-prove that year. The description says the film recounts the mountain and names a Forest Service office. The cone on this page is not a surveyed profile.
WALL The archive date 1984 is the film's date in this record. It is not the date of the eruption. The picture is not played here, and its narration is not copied.
MODEL An ash-green cone and three film cans. The shorter can is the MPEG2, 0.06 seconds under the other two. No cartridge is loaded.
Checking the stack.
Record: gov.archives.arc.13504
Seal sha256(name|slug|blurb): 9889558da808bcaf58153420c2ed633f16ecff94859a3ea06d9df173eb31160d