NoVAGO U: Geology 101
Settle down, settle down. This is Geology 101 here at NoVAGO U. It's Period 1, so let's get started. I'm Professor kiisikwa.
The geocache is located in Edsall Park, which is on the pre-approved list by Fairfax County Parks Authority. We thank them for their support of our hobby. Absolutely no night caching is allowed! The ticks, snakes, and poison plants attributes are just to be cautious. Few or none were observed when placing the cache. You will encounter thorns in this park, so use care in the path you choose. Each zone can be reached without passing through the worst of the thorns, but may require a longer route.
To pass Geology 101, you must download the Wherigo cartridge found at the link below and play it using the Wherigo app (Apple) or WhereYouGo app (Android).
Alert: You are about to download a file that contains details needed to find this geocache. As the geocache owner, I ensure that this file is safe to download. It has not been checked by Geocaching HQ or by the reviewer for possible malicious content. Download this file at your own risk.
DOWNLOAD THE CARTRIDGE HERE: 
Once on the above webpage, sign in, click the Download button on the left, select Pocket PC Device, and click Download Now. On my IPhone, after doing these steps, I open the Wherigo app, click the download icon in the upper left, and choose "Import cartridge from ICloud". Select the cartridge and it will add to the list of caches, from which you can select and run it. This approach works reliably for me. Your mileage may vary.
Thank you to rlobecker for invaluable help with developing the Wherigo and The Unstealthy Monkey for beta testing the wherigo and geocache. All errors in approach and content are entirely mine.
Cache of the Year, Best Other (Earthcache, Letterbox, Wherigo or Virtual), Best Historical/Education Cache
Cache of the Year, Best Other (Earthcache, Letterbox, Wherigo or Virtual), Best Historical/Education Cache, Best Kids Cache