Here is a link I just received to a wonderful repeat photography project using Osborne photographs on our National Parks: http://www.nps.gov/fire/wildland-fire/learning-center/panoramic-lookout-photographs.cfm
This website was completed as part of a Masters degree from Quinnipiac University by Tina Boehle, whom some of you might know from her work as information officer on the Sour Biscuit Fire — which became part of the Biscuit — with a Type II incident management team. She is currently a Communication and Education Specialist, Division of Fire and Aviation, with the National Park Service in Boise, Idaho.
This is one of the particular methods (and datasets) that Larry, John Marker, others, and I are proposing to use in our study of the 2013 Biscuit Complex and Rim Fires, and, in this instance, particularly within Yosemite and the Stanislaus NF: http://forestpolicypub.com/2013/12/07/douglas-complex-rim-fire-paired-wildfire-economics-study-proposal/
This is an excellent tool for studying wildfire events and results over time. For those of you with an interest in this method that is not restricted to National Parks — but is restricted to western Oregon — here is a related repeat photography project I have been working on from time-to-time over the past few years that also uses Osborne photographs as a beginning dataset: http://www.orww.org/Osbornes_Project/