The examples below use supplementary tile layers that show maps of stream courses in the Mississippi delta area, produced by Harold N. Fisk for the Presidential Mississippi River Commission, 1944. The maps included in the report are in the public domain. The maps used here are the four sheets of plate 15 of the report. An example of the TileJSON representation of the map is:
{
"tilejson": "2.2.0",
"name": "Mississippi Stream Courses sheet 4 - Harold Fisk, US Army Corps of Engineers",
"attribution": "Presidential Mississippi River Commission, 1944. Public Domain.",
"scheme": "tms",
"tiles": [
"https://maps4html.org/FiskMississippiMapsStreamCourses/sheet04/{z}/{x}/{-y}.png"
],
"bounds": [-92.60431421311640, 28.79036396296392, -88.72531489137181, 31.04551669046586],
"minzoom": 6,
"maxzoom": 12
};