The Singapore River is a kind of ‘psychogeographical faultline’ – a site constantly in construction and motion where the spaces of our memories and dreams interact, merge, or drift apart – like a series of tectonic plates. The river is a site of significant historical, economic, and social importance. Yet despite its centrality, many Singaporeans do not know its history, its exact location, or even appearance. In October 2006, the online mapping company Virtual Maps Pte Ltd was embroiled in a civil lawsuit with Singapore Land Authority for the copyright infringement of vector map data that was originally provided by SLA to Virtual Maps in 2004. The SLA revealed that Virtual Maps Pte Ltd had inserted some imaginary features into their maps such as a fake temple, fake buildings, and a fictional dead-end street. Virtual Maps Pte Ltd argued that the addition of these fake features was not meant to mislead users but instead served as ‘fingerprints’, or identifiers. Here the River Lies is a response to this.