The document proposes a method to geolocate routers by crowdsourcing information from network experts. It involves combining existing edge geolocation data with data sources like hostnames, DNS records, and latency measurements. Experts would provide information on naming schemes and locations to help analyze traceroute data from RIPE Atlas probes. A probabilistic approach is needed since crowdsourced data may conflict or have ambiguous location names. The goal is to generate more accurate router geolocations to benefit network analysis, visualization, and geolocation services. Open questions remain around how exactly to structure the crowdsourcing of expert knowledge.