HISTORICAL ROUTE COMPARISON NOTES
Yenra | October 11, 2026
Guide: https://yenra.com/lewis-clark-geography/
Purpose: explain one route decision using historical and modern geographic evidence.
Start with the Great Falls portage example in the guide, then try another location.
Historical map title, creator, date, holding institution, source URL:
Historical journal writer, entry date, source URL (separate editor notes):
Modern map title, date, source URL, layer definitions:
Location and stage of journey (outward/return/scouting party):
Transport mode and terrain or water feature:
Indigenous nation/place/knowledge relevant to this stage and source:
Recognizable feature in both maps:
Scale, orientation, and place-name differences:
What each line represents (historic route, modern road, or approximation):
Explain the route decision in one sentence:
Evidence supporting that explanation:
What remains uncertain and which source might resolve it:
Keep homelands, reservations, and state boundaries identified by type and period.