Saturday, 12th. Left the S. fork, and after a march of 12 miles found ourselves on the N. fork. In the afternoon passed a small ash grove of about 23 trees — timber is so scarce that such a grove is worthy of notice. We encamped on the N. fork having come about 18 miles; on leaving the S. fork we left the buffalo also.
The ash grove noted by Bidwell came to be known as Ash Hollow, a notable stopping point on the Oregon-California Trail, with good water, wood, and grass. It is now Ash Hollow State Park in Nebraska and worth visiting to see the trail ruts on steep Windlass Hill.