When shooting landscapes early in the morning, I try to arrive at least 15 minutes prior to the published sunrise time. Dawn can sometimes yield soft painterly strokes of color. This coupled with the chance of a morning mist make for quite a moody scene. This was the case at Robert Moses State Park as I hurried to set up the tripod before the scene changed.
Landscapes may not be as fleeting as wildlife, but a minute or two can make all the difference. I quickly decided that I wanted to capture at least two revolutions of the actual light as it cut through the night sky. To do this I used a long exposure of 4 seconds. Since the shutter was so slow the camera was tripod mounted. A small aperture of f22 helped to capture great depth of field, making sure everything was in focus. This was photographed from quite a distance, near the parking lot, using a 400mm lens. Shortly after, the colors gave way to a pale sky absent of color.
If you're not exactly sure of when the sunrise time is in your area. Check out the really helpful Photographer's Ephemeris tool. I've been using them for years to plan my shoots both here in the U.S. and while traveling abroad. It's incredibly accurate, and helps to put you in the right place at the right time.