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  
3.1. Photometric Catalogs  
3.2. Selecting LBGs  
3.3. Selecting QSOs  

4. OBSERVATIONAL SETUP AND MASK DESIGN  
4.1. Bandpass Filter and Grism  
4.2. Mask Design and Target Prioritization  
4.3. Bright Target Masks  
4.4. Field Tiling  

5. COMPLETED OBSERVATIONS AND DATA REDUCTION  
5.1. Observations  
5.2. Data Reduction  

6. SPECTRUM ANALYSIS AND SAMPLE STATISTICS  
6.1. Initial Spectral Classification and Redshifts  
6.2. Target Sampling Rate and Purity  
6.3. Bright Target Statistics  

7. SPECTRUM MODELING AND REDSHIFT MEASUREMENTS  
7.1. LBG Spectrum Modeling  
7.2. LBG Redshift Comparison  
7.3. QSO Spectrum Modeling  
7.4. Continuum Uncertainties  
7.5. Damped Absorbers  

8. TOMOGRAPHIC RECONSTRUCTION  
8.1. Sightline Density and Continuum-to-Noise Ratio  
8.2. Tomographic Map Construction  

9. LATIS IGM MAPS: VISUALIZATION AND CHARACTERIZATION OF STRUCTURES  
9.1. Comparison to CLAMATO Map  

10. DISCUSSION