Backyard explorations

I was lucky to have found a cave in my backyard a few years back! It's quite random due to it not being close to any of the main Karst regions in the area. Ive explored the cave probably 10-12 times, it has tons of intersections, corridors, and awesome formations! Its goes back about half a mile before pinching off and getting too tight. I know there is a way around it so I will attempt to go farther on my next exploration!