The app currently works anywhere in North America, including the U.S., Canada and the Caribbean. Depth data displayed is based on NOAA, USACE and Canadian surveys along with lake data for 12 states in the U.S. We are currently gathering depth data for additional states and have plans to begin crowdsourcing data.
USACE survey data in Argo also recently got a clearer, more detailed view. You can see surveys in high definition and filter them by survey age, making it easier to tell how recent the data is. These surveys are updated automatically.
