He means if I type 'Seattle, WA' then what is the 'search radius' around Seattle that I will get for hikes?
When I add support for searching by location (because this seems to be a popular request), then I think it should zoom you into the location, enough so that you could see all of Seattle. I think this can be done with google's jsapi / google maps but I'm going to have to investigate.
What I expected was a location-based thing: show me hikes near where I live. I would find that tremendously useful.
Good start!