From the Fort Vancouver Cultural Landscape Report (1992):

1829-1846: ... "Lower Plain, west and northwest of Fort Plain, was an immense open plain, roughly triangular in shape, bounded on the east by the finger of forest separating it from Fort Plain; the forest extended to the northern edge of the plain. In the north of the plain was "Big Lake," (now Vancouver Lake) a somewhat circular lake, approximately two miles in diameter at that time, from which the "Lake River" sprang, forming the northwest boundary of the plain as it ran to the Columbia River, which formed the south and southwest edge of the plain. A finger of the lake extended south (it shows southeast on the 1844 map), forming a narrow strip of open meadow to the east of it, between one-half and three-quarters of a mile in width, in which fenced fields were laid out, certainly by the mid 1830s. Throughout most of this period, cattle, horses and sheep were pastured in the unfenced open plain, which stretched in a narrow band between river and forest for miles down river to the junction with the Lewis River. There were two more lakes on the plain: Chalifoux Lake, and another, smaller lake to the north of it. In the southeast corner, a dairy, with enclosures and structures, and a piggery with enclosures and structures, and several cultivated fields along the river were located."

1847-1860: ... "Upper Mill Road continued east from the Catholic mission on much the same route established earlier, into the rising ground of Fort Hill and from there on to Mill Plain. Connecting roads from there to the mills and the Back Plains appear to have followed the Hudson's Bay Company routes. To the west, the road ran through the north end of Vancouver City, skirted the forested area--now mostly denuded of trees--which had separated Fort Plain from Lower Plain, and dipped down to the river edge, skirting the south edge of Amos Short's fields. From there it headed north, splitting in two branches, one of which followed the earlier Hudson's Bay Company's road to the West Plain farm area, now in possession of settlers, and the second of which headed in a northwesterly direction, skirting the northern edges of the string of claims along the river in the direction of Chalifoux Lake."

An 1888 U.S. Coast and Geodetic Survey chart "Columbia River Sheet No.6, Fales Landing to Portland" lists the lake as "Shallowpool Lake".

An 1888 plat map of Clark County (courtesy "Rootsweb.com") shows the lake as "Shillapoo Lake".

The 1896 U.S. Geological Survey's 1/62,500 Topographic Map "Portland Quadrangle" (surveyed in 1896, culture revised in 1905) shows the lake as "Shillapoo Lake".

In 1897 the U.S. Board of Geographic Names made official "Shillapoo Lake".

• Shillapoo Wildlife Area, North Unit ...
• Shillapoo Wildlife Area, South Unit ...
• Shillapoo Wildlife Area, Vancouver Lake Unit ...
• Birds ...
• Swainson's Hawk ...
• Upland Birds ...
• Game Laws, 1915 ...
• LaFrambois Road ...
• Snowy Fields 2008 ...
• Volcanoes ...

The U.S. Bureau of Land Management's General Land Office (GLO) Records database (2019) shows Francis LaFrambois and the Heirs of Margaret LaFrambois being granted title to 544.17 acres of T2N R1E, parts of Sections 7, 8, 16, 17, 18, 20, and 21, on December 22, 1865 (1850 Oregon-Donation Act).