Some things are better left alone, Even though, some feel they know better.
As long as its a state park the passport covers it, we buy one every year to fish mindadoka and don't forget when you license your vehicles in 2013 you can get the pass for 10.00 and it covers all state parks in Idaho.
I just read in the newspaper a couple of days ago that officials from the state of Idaho were going to meet and one matter of business was concerning the state park pass. When you renew your drivers license you might then have the opportunity to pay for the $10.00 pass and it is good for various state parks. I don't know if this information helps any?