Keywords: Dark matter distribution (356); Galaxy environments (2029); High-redshift galaxy clusters (2007); Intergalactic medium (813); Lyman alpha forest (980)

1. INTRODUCTION

2. SURVEY DESIGN OVERVIEW

3. TARGET SELECTION

4. OBSERVATIONAL SETUP AND MASK DESIGN

5. COMPLETED OBSERVATIONS AND DATA REDUCTION

6. SPECTRUM ANALYSIS AND SAMPLE STATISTICS

7. SPECTRUM MODELING AND REDSHIFT MEASUREMENTS

8. TOMOGRAPHIC RECONSTRUCTION

9. LATIS IGM MAPS: VISUALIZATION AND CHARACTERIZATION OF STRUCTURES

10. DISCUSSION