Hi John
I hope the info below answers your questions?
the average population density in the Jura is 52 people per Km2, however in the countryside and villages like ours its a lot lower… our village is several km from any other, and the population of the village is about 120 people of all ages.
(from the list at https://en.wikipedia.org/wiki/List_of_French_departments_by_population )
We are not particularly high up, for the Jura, at 830m. In winter, when there is snow in the region, it is probable that there will be enough cover to ski cross country from 1100 to 1300 metres. The nearest areas to us at those heights are about 20 minutes drive. If you look at Les Rousses and Mont d’Or (two local downhill ski resorts), you will get more detail… and both have winter webcams. The highest peaks are south of us, Geneva region, 1,717-8 m for Crêt de la Neige., and Le Reculet. (https://www.britannica.com/place/Jura-Mountains)
On our plateau, I think that the light is wonderful. We have fantastic sunsets through the winter months. All year we have a regular repeat pattern of several days of full sun and intense blue clear sky, followed by a couple of days of variously, storm, snow, rain, or just cloud. In summer the temperature builds from around 20 deg C at the start of the several days of sun, to normally around 28 deg C before the heat breaks and the orage days start. In winter the pattern is much the same. We were persuaded to buy when, in the winter following our first summer visit to the area, the light was flooding into all the rooms on January 2nd, and bouncing off the snow outside. It felt so different to the long grey winter experience in our house in a welsh valley!
While there ius a 31% average tree cover in France, and 37% for Bourgogne Franche Comte. The Jura at 54% makes up much of that, and the actual tree cover is greater, since this is for designated forests. (from https://www.globalforestwatch.org/ ) The Haute Jura also has a long history of Agro-Forestry, although there is little evidence remaining today. Agricultural colleges in France are just starting to address Agro-forestry again.
The Jura is one of the major Lake Districts of France https://www.france-voyage.com/tourism/lakes-region-1085.htm so there is plenty of summer sailing, swimming and fishing locally, as well as the usual canoing etc on local rivers.
I have friends, long resident near Albertville, whoe live close to Crest Voland, and while the views and air there are beautiful, I think the landscape is more spartan all year round. On our visits to Albertville and its surroundings in the summer, I found the valleys gave a feeling of being closed in, and the towns needed winter snow to look at all attractive. We then came across Nozeroy (http://www.nozeroy.info/), and initially intended to buy in the town, before finding that property in the neighbouring villages offered so much space, potential, and land for growing things.
I include a few compressed photos to illustrate the above.
Our village in summer
Lac de Chalain, near us, with sandy beaches and water temperatures of 23 deg C plus in Summer.
Sunlight flooding our south facing dining room in December.
Our Jura winter sunsets. (Taken last week - we are now back in grey Wales for a few days).
Best wishes
John