I find the surface of a photograph a thing of beauty in and of itself, and it is this surface that makes a photograph unique relative to other two-dimensional media.

So when I became interested in photography and further being inspired by the work that I saw of Ansel and others, it was a natural extension to go back to these places that I knew as a kid and explore them with my camera.

And the camera position, the organization, looking for repeating forms, shapes, trying to set up a visual rhythm seemed to come very natural. All of a sudden I was in a forest of aluminum and steel rather than a forest that we might think of in a traditional sense.

I think the greatest photographers are the amateur photographers who do it because they love it. Arnold Newman is a good example; he is a consummate professional, but he's also an 'amateur' in the pure sense of the word.

I took a workshop from him a few months after that. That experience changed my whole approach to photography. At that workshop in Yosemite in 1973 I decided I wanted to try and see if I could pursue this for myself, and I'm still trying.

A photographer needs to be a good editor of negatives and prints! In fact, most of the prints I make are for my eyes only, and they are no good. I find the single most valuable tool in the darkroom is my trash can - that's where most of my prints end up.

You can also see sometimes that the best pictures are the ones where you didn't try so hard, where you were just enjoying the process - and you didn't even know why you were making the picture. It felt right. If someone asked, 'Why are you making this picture?' you probably couldn't describe it very well - and that's why it needs to be a photograph.