6/25/83 8312 1/8mi SE of Brownie Butte in cliff face Center, S line, SE¼ Sec. 31, T 21 N, R 37 E, Garfield Co, Montana Trumbo Ranch 7½' Quad. Reversed polarity 30-40' below ? coal x 60-80' above ? coal. Normal at W coal Paleomag data at Billy Creek x in paper not properly matched. Their are at least 50' of reversed section below the first lignite Snow Creek & Billy Creek units now close match "Tonstein" crazy layer in lower ? x1 tuff in upper ? How do Tr Hill Lignite match up w Brownie Butte Flora: Paranymphea crassifolia Widdringtonites sp. Sequoia langsdorfii Ampelopsis Nelumbium montanum acerifolia Vitis olrikii Celastrus taurinensis