Anonymous, "Mississippi headwaters before Line 3 // After https://t.co/80qAX06CyP", contributed by , Center for Ethnography, Platform for Experimental Collaborative Ethnography, last modified 10 December 2021, accessed 4 May 2024. http://centerforethnography.org/content/mississippi-headwaters-line-3-after-httpstco80qax06cyp-0