1 INTRODUCTION

2 OBSERVATIONS AND REDUCTION

3 ANALYSIS
3.1 Comparisons with the Besançon Model
3.2 Survey Fields

4 DISCUSSION
4.1 Comparing the observations with the Martin et al. (2005) model
4.2 Comparing the observations with the Peñarrubia et al. (2005) model
4.3 Key locations to test the models
4.4 Insights into the nature of the Galactic Warp

5 CONCLUSION