Original sentence: A year later Weaver later led the Peeples party on a prospecting expedition up the upper Hassayampa River to what are now the Weaver Mountains, where they found placer gold at Rich Hill
Edited sentence: A year later Weaver later led the Peeples party on a prospecting expedition up the upper Hassayampa River to what are now the Weaver Mountains, where they found placer gold at Rich Hill, near present-day Yarnell, Arizona