1. Introduction
2. Data and Methods
2.1. GES Strategy and Spectroscopy
2.2. GOSSS Spectroscopy
2.3. Spectral Classifications
2.4. Spectral Types from Other Sources and Cataloguing
2.5. Gaia EDR3 Data
3. Census
3.1. Overall Properties
3.2. Individual Stars
4. Results and Discussion
4.1. The Observed CMD and Completeness
4.2. Binary Fraction
4.3. The Spectroscopic n-qualifier as an Indicator for Rotation
4.4. Runaway Candidates
5. Conclusions