Way History: 200138026

tuning up tagging for Stanton and Grant Glaciers and adding chronology relations

Adding 1850 glacier info #sotmus2024

1850	yes
project	sotmus2024
source	https://www.sciencebase.gov/catalog/item/5b194ca2e4b092d965237f4a
source:name	A comprehensive inventory of maximum glacial extent in Glacier National Park during the peak of the Little Ice Age

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