I love the smell of a freshly fired 20 ga Winchester hull on a snow covered morning.
There is that, and it is close.
But if one asks about my favorite aroma. A bright April morning and the sun is shining brightly onto the saddle horses still in their shaggy winter coats. I love to walk up beside the horse and shove my nose right into that shoulder hair and inhale deeply.
Takes me right back sixty years to my first pony, and all the wonderful horses in my life since.
