Magic the Gathering MtG Upkeep Abilities Trigger?

You guys are all pretty dumb. Both cards trigger at different times and only one of them is during the upkeep. Necrogen Mists triggers during the Upkeep, Howling Mine goes off during the Draw step. Read the cards please then answer because it says it right on the card. Upkeep comes before draw step so the player discards a card then draws, there is no other way.