In North America, you would usually have to travel to the south to go from a coniferous forest to a deciduous forest. Temperate deciduous forests or temperate broad-leaf forests are dominated by trees that lose their leaves each year. They are found in areas with warm, moist summers and mild winters. Temperate coniferous forest is a terrestrial biome found in temperate regions of the world with warm summers and cool winters and adequate rainfall to sustain a forest. I hope this is the answer that you were looking for.