05167.jpg
Ranger at Steamboat Geyser (note camera);
Photographer unknown;
1964
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05290.jpg
Ice formation in the Mud Volcano area (note ranger hat);
Photographer unknown;
1959
|
05545.jpg
Interior of the Old Faithful sewage treatment plant;
J Schmidt;
1977
|
05546.jpg
Old Faithful water treatment sewage plant;
J Schmidt;
1977
|
05547.jpg
Old Faithful water treatment plant;
J Schmidt;
1977
|
05548.jpg
Exterior of the Old Faithful sewage treatment plant;
J Schmidt;
1977
|
05549.jpg
Old Faithful sewage treatment plant, settling ponds;
J Schmidt;
1977
|
05550.jpg
Old Faithful sewage treatment plant;
J Schmidt;
1977
|
05644.jpg
National Park Service boat patrol;
J Schmidt;
1977
|
05730.jpg
Woman ranger at new mud pot in the Mud Volcano area (note uniform);
Al Mebane;
1974
|
05763.jpg
Mud cauldron in Pelican Valley;
JA Tyers;
1974
|
05778.jpg
Interpretive program at Emerald Pool in Black Sand Basin;
M Storey;
No date
|
06030.jpg
McCartney's Cave;
Photographer unknown;
1964
|
06411.jpg
Maintenance worker cleaning up at Old Faithful Visitor Center;
J Schmidt;
1977
|
06657.jpg
National Park Service backcountry boat patrol;
J Schmidt;
1977
|
06674.jpg
Ranger at edge of Great Fountain Geyser;
J Schmidt;
1977
|
06740.jpg
Yellowstone Lake boat patrol;
J Schmidt;
1977
|
06771.jpg
Maintenance worker washing windows at Old Faithful Visitor Center;
J Schmidt;
1977
|
06772.jpg
Maintenance worker washing windows at Old Faithful Visitor Center;
J Schmidt;
1977
|
06890.jpg
Winter ski patrol in the Thorofare;
Bryan Harry;
1964
|
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