It may surprise many people that larch is a conifer. For a conifer it is most unusual in being deciduous,shedding its leaves each autumn. It's foliage is also not typical of conifers in the leaves being soft and rather on the light side of green. The illustration shows a larch of perhaps 15-20 years old grown in the open. It may be 10-15m. height.
Larches grown in woodlands have much shorter crowns.
Again, the larch is unusual for conifers in that on older trees the dead branches fall off more readily, leading to long lengths of clear trunk in tall trees. Larch trees usually have fairly narrow slender and attractive crowns which do not keep out the light. Older larchwoods have a great deal of undergrowth , unlike some other conifers which cast a heavy shade. The larch is possibly one of the easiest of the conifers to identify. Do not forget that it is deciduous, so if you have been observing it through the year this itself will narrow down your options.