Location: Corvallis, Oregon (Marys River & Willamette) (Township 11 South, Range 5 West, Section 35 & DLC #53)
Compare the 1936 aerial photography flown from biplanes with today's satellite view. Circle and record three major landscape changes:
Look for: Open oak savanna, orchards, dirt wagon roads, steam-railroad grades, and family pastures.
Look for: Dense Douglas-fir forest canopy, paved roads, modern houses, and changed creek banks.
1. Change #1: __________________________________________________________________________
2. Change #2: __________________________________________________________________________
3. Change #3: __________________________________________________________________________
Detective Conclusion: Why did open oak meadows fill with fir trees after 1940? __________________________________________________________________________