Midway between Casper and Douglas along the south bank of the North Platte River, Glenrock (pop. 2,231) was a vital rest stop and supply station on the Oregon and other emigrant trails. Several downtown buildings have endured since its heyday, when Glenrock was known as Deer Creek Station and some 20,000 migrants came through each year, many of them camping overnight at the “rock in the glen” on the west side of town, where a sandstone boulder still holds the names of passing pioneers. Nowadays Glenrock is known for its massive coal-fired power plant, one of the largest in the country.
Between Casper and Glenrock, US-26 winds along the river, but between Glenrock and Douglas the old road has been replaced by the I-25 freeway.
