It doesn't cost me a dime to get into the national parks/monuments with my Golden Access Passport I got for being a disabled vet. However I was charged $6 to get my bike through the gate at Picacho Peak State Park here in Arizona. Also locally, there's a tool booth at the bottom of Mt Lemmon, but you only have to pay if you're going to use the picnic areas, hiking trials, etc. If you're just going for a ride to the top and back, you don't have to pay.