March 27, 1862: Marin County
[Today] we struck back into the hills a few miles and stopped all night at a ranch-house. The man was absent, but his wife, a Boston lady, who showed much intelligence and even refinement, was at home and hospitably entertained us. She was of the prettiest women I have seen in this state.
The whole region between the bay and the sea is thrown up into rough and very steep ridges, 1,000 to 1,600 feet high, culminating in a steep, sharp, rocky peak about four or five miles southwest of San Rafael, over 2,600 feet high, called Tamalpais. On this was once a Coast Survey station, an important point.