This page is all about Cambodia Border Crossings & Overland Routes. It shows overland routes from Bangkok to/from Siem Reap (& Gattambang & Phnom Penh), via the Poipet crossing. It also shows other border crossings (Vietnam, Laos & Thailand).
Overland Routes Map:
Border Crossing Map:
Link to How to Kayak in Cambodia
Link to How to cycle Angkor Wat