Each of the participants in ESI-1 is expected to develop an EarthCache site and submit it to GSA for approval. The format of this development is given in examples from previous participants. Participants are expected to work up a site inside the city of Houghton as part of a group of 30 sites for walkers and bikers. The groundwork for this site development will be done at the end of the afternoon on Day 4. Use the web resources posted to decide which site you will work on.