If you really think of what digital photography has done, you might realize just how things have changed. Not too many years ago, to take photograph in both color and black and white, you would have to either shoot the image with two identically equipped cameras, or hope to make a print usually from a color negative on pan-chromatic black and white emulsion paper.
The way I use digital photography for this end is to make a black and white conversion of the image in post processing with my editing software on my pc. I think like that. I look first at an image in color . Then I think about how it will look in black and white.
In black and white landscape photography, there are two great photographers who I consider to be mentors. Clyde Butcher and Ansel Adams, whose primary tool has been the large format film cameras called field cameras for their ability to fold up compactly and be transported to the location with the greatest of ease, produced large images that transported the viewer into the environment where the scene was shot. While I am not sure that my 10 megapixel D-80 could do that, the enlargements that I have gotten from images taken with that camera do hold up quite well.
To create a black and white image and make it work, it changes the way one thinks. I generally change from thinking about color and more about tone and texture. I think more about the surface of that piece of quartzite or the texture of this piece of granite than whether one is red or gray. I think more about the tone of the image. I think more of grayscale and the zone system that was originally conceived by Ansel Addams.
The cameras work differently. With film cameras, this is done with different colored filters on the lens ranging from red to green. Adams used Red #25 most often. In digital photography, this is done with the electronic filters in software.
However, you look at it, these scenes are yours to enjoy.