I created QR codes for each park that when scanned with your Droid or iPhone, will give you trail information for that park as well as a downloadable map to locate the trails. These signs should start showing up in the park bulletin boards within the next couple weeks.
Here is an example of what to look for.
Click on the image for a larger view and to try out the codes.
Like the sign says, by using these codes for your mobile device you are helping the park stay greener since they will have to print less paper.