About time I put out an easy cache.
Yes, it is D1. Yes, it is T1. No, there isn't a puzzle attached. Yes, I did place it according to Morsix rules. No, I'm not joking. Although... sorry, folks, but it is a bison tube - I had to make it muggle-resistant somehow. It's no longer a bison tube. Should be even easier now.
Just to make sure it's a D1, I've hidden explicit finding instructions in the hint...