Everything was now ready. Spring in these northern climates was enchanting. "The trees quickly put on their leaves after the long, hard winter months, and the whole vegetable world comes forth with a luxuriance no less astonishing than agreeable." At the same time clouds of mosquitoes and stinging sand-flies made the nights horrible. On 18th July the little party in high glee set forward in canoes rowed by Canadian boatmen, hoping to reach the Copper Mine River before winter set in. But the difficulties of the way were great, provisions were scarce, the boatmen grew discontented, ice appeared early, and Franklin had to satisfy himself with wintering at a point five hundred and fifty miles from Lake Athabasca, which he called Fort Enterprise. Here there was prospect of plenty, for large herds of reindeer were grazing along the shores of the lake, and from their flesh "pemmican" was made; but the winter was long and cheerless, and Franklin soon realised that there was not enough food to last through it. So he dispatched the midshipman Back to Lake Athabasca for help. Back's journey was truly splendid, and we cannot omit his simple summary: "On the 17th of March," he says, "at an early hour we arrived at Fort Enterprise, having travelled about eighteen miles a day. I had the pleasure of meeting my friends all in good health, after an absence of nearly five months, during which time I had travelled one thousand one hundred and four miles on snow-shoes and had no other covering at night than a blanket and deer skin, with the thermometer frequently at forty degrees below zero, and sometimes two or three days without tasting food." By his courage and endurance he saved the whole party at Fort Enterprise. By June the spring was sufficiently advanced to set out for the Copper Mine River, and on July they reached the mouth after a tedious journey of three hundred and thirty-four miles. [Illustration: A WINTER VIEW OF FORT ENTERPRISE. From a drawing, by Wm. Back, in Franklin's _Journey to the Polar Sea_, 1823.]