Larches in a young pine forest

I was planning to take blips of our current house this week as we're moving out on weekend but there were larches growing on the lot where I worked today. So far I haven't seen larches before at work. They don't grow naturally in Finland. They're planted in parks etc. These days they're also used in forestry but much less than spruces, pines and birches. First I thought that maybe a bird has spread the larch seeds but since there weren't just a few but dozens of larches growing among other young trees I suppose the land owner has planted them.