I was hiking and came across this...I had my DSLR with me...

Looks like it would be a fun explore.

As this is the photo critique forum, I'll give a bit of... critique

The shot is a bit under exposed. While it gives off a certain gloom to it, a little more light (longer exposure) would be great. If you didn't have a tripod, finding a rock or a place to rest your camera and using the 2 (or 10) second timer to snap the image to avoid camera shake is a good idea.

Would love to see the place a bit closer... I assume you just took the image and moved on?

Composition is a bit in between. Personally, I'd either fill the frame more with the subject (it has a natural rule of thirds), or pull far back and have the building less important but the setting more important.

It's a really neat shot! It's a little dark, kind of hard to make out a lot of details. Maybe brighten it a little bit. Otherwise, I love it and can't wait to see the shots you get when you go back to explore it!