USGS Repeat Photography — Glacier National Park Project + Southwest Collection

Federation of US Geological Survey historical repeat-photography archives, dominated by two collections: (1) **Glacier National Park Repeat Photography Project** at USGS Northern Rocky Mountain Science Center (NOROCK, West Glacier/Bozeman MT), founded 1997 by Dan Fagre + Lisa McKeon, pairing historical Glacier NP photographs (baseline 1887, T.J. Hileman + Morton Elrod + F.E. Matthes era) with modern repeats to document glacier retreat; ~57 image pairs in the canonical 2021 ScienceBase data release (DOI 10.5066/P9CQDA7S), 18 glaciers, ongoing 2025 field campaign verified at Swiftcurrent/Grinnell/ Jackson/Piegan/Sperry. (2) **USGS Southwest Repeat Photography Collection** at USGS Southwest Biological Science Center (Flagstaff AZ), founded 1960 by Ray Turner + Robert Webb (formerly "Desert Laboratory Repeat Photography Collection"), thousands of pairs across Sonoran/Colorado Plateau + Kenya outlier. The canonical CLIMATE-HISTORICAL pillar of the repeat-photography family — complements [[phenocam]] (instrumented sub-daily phenology) and [[chronolog]] (community fixed-angle engagement). 130-year baseline is unmatched. Downstream uptake includes IPCC AR glacier-retreat narrative (AR4/5/6) and the 2023 *Held v. Montana* climate trial (Glacier NP retreat cited as factual basis). NOT a real-time feed — "snapshot federation" pattern, opportunistic campaigns. Status 2026: **active but precarious** — DOGE cancelled NOROCK Bozeman lease Feb 2025; FY2026 USGS proposed -39%/-$1.5B; OMB language explicitly disfavored "social agendas such as climate change"; USGS staff down 19% (8,400→6,780) since Sep 2024; original PIs gone (Fagre retired July 2020; McKeon now "Former Employee"); current continuity rests on Caitlyn Florentine + Erich Peitzsch, both wearing multiple hats.

Provider	USGS Northern Rocky Mountain Science Center (Glacier project) + USGS Southwest Biological Science Center (SW Collection)
Type	survey
CNR score	20
Origin	https://www.usgs.gov/centers/norock/science/repeat-photography-project
Provider URL	https://www.usgs.gov/centers/norock