Grand Canyon NPS:
2016 Grand Canyon History Symposium Museum Collection 0353
Grand Canyon NPS:
2016 Grand Canyon History Symposium Museum Collection 0343
Grand Canyon NPS:
2016 Grand Canyon History Symposium Museum Collection 0337
Grand Canyon NPS:
2016 Grand Canyon History Symposium Museum Collection 0335
Grand Canyon NPS:
2016 Grand Canyon History Symposium Museum Collection 0332
Grand Canyon NPS:
2016 Grand Canyon History Symposium Museum Collection 0329
Grand Canyon NPS:
2016 Grand Canyon History Symposium Museum Collection 0328
Grand Canyon NPS:
2016 Grand Canyon History Symposium Museum Collection 0323
Grand Canyon NPS:
2016 Grand Canyon History Symposium Museum Collection 0320