Page:Field Notes of Junius Henderson, Notebook 3.pdf/69

This page needs to be proofread.

back from the Wasatch formation to the Mesa Verde long before reaching White River White River, Colorado.

Meeker, Colo. Meeker, Colorado, Aug 8, 1909 August 8, 1909

Rained hard during night. Bright, warm morning. Robbins and I started out at 9 a.m., going up to Flag Creek Flag Creek, Colorado road to cross river to south side. The valley here occupies the upper Mancos formation, with Mesa Verde forming strong bluffs on North side. Dip approximately 15° NW. The Mesa Verde, as usual, is composed mainly of sandstones, with some shales. Several coal veins crop out along the bluffs, at least one of which is being worked. Where we reached the south side of the river a low bluff is composed of shaley sandstone like portions of the Pierre north of Boulder Boulder, Colorado. The south boundary of the valley is not at all abrupt. Proceeding up