Map I have shows parking.
Sorry we didn't go looking. However, according to a backpacking book I have, there are (or were; the book is 2 years old) sites not on the map (duh), that are primative hike in sites, It notes the trails are 1/2 to 2 miles in, with potable water at the trailhead and restrooms 1/4 mile from the parking area. The book notes to contact the park for info on primative sites. If you find them post a note
SP web site should have a phone number.( can ask about parking too)