The Erdner Treppchen Vineyard (meaning The little staircase of Erden) produces some of the most muscular and powerful Mosel Rieslings. Long ago, stone steps were built into this vineyard's steep hillside to help workers reach the vines. The iron-infused, red slate soil produces wines that are muscular and complex, with an intense mineral finish. Wines from Erdener Treppchen are more like a powerful, hard-body rock climber than the graceful ballet dancer of Wehlener Sonnenuhr. They benefit greatly from a few years in the bottle to develop fully.