Ground Control Points are defined as points on the surface of the earth of known location used to geo-reference Landsat Level-1 data.
This page allows you to extract ground control point binary files from the USGS EROS GCP Library over your area of interest.
Landsat represents the world's longest continuously acquired collection of space-based moderate-resolution land remote sensing data. Four decades of imagery provides a unique resource for those who work in agriculture, geology, forestry, regional planning, education, mapping, and global change research. Landsat images are also invaluable for emergency response and disaster relief.
The Landsat Update is an informal communication tool, prepared periodically and distributed electronically to USGS Landsat partners, to provide information about Landsat activities and related topics of interest.