The Green was here about 400 feet wide and was held in on the western side of the park by the Echo Cliff which was a vertical wall some 600 feet high composed of homogeneous sandstone, and consequently almost without a crack from top to bottom where its smooth expanse dropped below the surface of the water.

It extended down river about three-fourths of a mile, the river doubling around its southern end.
The next day after arriving here most of us did not feel like doing any climbing and remained around camp, mending clothes and other articles, adjusting things that had become deranged by our rough work in the last canyon, recording notes, and making entries in diaries.

Prof.took observations for latitude and longitude to establish the position of the Yampa so that it could be properly placed on the map.

The Major during an exploring trip from the eastward in 1868 had reached the Yampa Canyon, but he could not cross it.

He now decided to go up with a boat as far as possible in three days to supplement his former observations as well as to study the canyon in general.