The main roadway of PR 30 begins at the circulating drive around the parking lot in front of the concession building of the swimming pool at San Solomon Springs.

The route proceeds to the north with a spur branching off to the east to the San Solomon Springs Courts before passing the park headquarters near the terminus of the road at SH 17.

At the campground, the route ends as a circular drive accessing individual camping spaces and a viewing exhibit for a reconstructed desert wetland.

[2][3] The main portion of PR 30 from the parking lot at the swimming pool to SH 17 including the spur to the San Solomon Springs Courts was constructed between 1935 and 1940 by Company 1856 of the Civilian Conservation Corps.

On May 30, 1961, the modern routing of PR 30 was designated, including the eastward extension toward the campgrounds.