Thank you for the submissions! #580 is our favorite of yours but we are worried it might be too close to #558. #581 concept was neat but it felt a little too right from a national parks sign post. which on one hand is a great idea, on the other not unique enough. If you want to work with the hiker idea, we would love to see something like that. Also, the reason #583 didn't work is because the logo was built into the text. we only want pictoral mark so we always want a separation between logo and text.
i hope this helps and thanks again for the submissions!