"101 degrees west longitude" is a line that joins the north and south poles.
Since no latitude is given, the mystery city could be anywhere on this line.
Possibilities include:
-- Melita, Manitoba, Canada
-- Washburn, North Dakota
-- Timber Lake, South Dakota
-- Mullen, Nebraska
-- Colby, Kansas
-- Guymon, Oklahoma
-- Pampa & San Angelo, Texas
-- Ciudad Acuña & Saltillo, Mexico
After that, nothing more going south until you hit Antarctica.
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"100 degrees west longitude" is the description of a line on the Earth's surface
between the north and south poles that crosses
-- the northern islands and province of Manitoba in Canada,
-- North Dakota, South Dakota, Nebraska, Kansas, Oklahoma, and Texas in the USA,
-- Mexico,
-- about 6,100 miles of Pacific Ocean, and
-- about 1,240 miles of Antarctica.
That point is on the Antarctic continent, almost 6,900 miles south of Mexico City,
and about 690 miles from the south pole.
The closest Idaho ever gets to 100 degrees west longitude is along its eastern border with Wyoming, at about 111 degrees west.
The degree of longitude east of 5 degrees west is 4 degrees west longitude.
The capital of Idaho is at Boise. The longitude of Boise is roughly 116.19° West. That's 16.19 degrees west of the 100° W meridian. (But you could also reach Boise by traveling 343.81 degrees east from the 100° W meridian.)
That would be (10 + 30) = 40 degrees west longitude.
Brandon, Manitoba, Canada
Texas. The 100 degrees west longitude line runs down the center of the state.
The closest Idaho ever gets to 100 degrees west longitude is along its eastern border with Wyoming, at about 111 degrees west.
4 degrees north latitude 27 degrees north latitude and 48 degrees west longitude 100 degrees west longitude
The USA, is the country at 40 degrees North latitude, and 100 degrees West longitude. The state of Nebraska contains precise location.
It Is 30 Degrees North And 100 Degrees west
The center of Boise, Idaho is at about 116.2 degrees west longitude.
South Dakota
Canada
The location described is in Canada. Specifically, it is in the province of Manitoba, near the town of Churchill on the shore of Hudson Bay.
Monterrey, Mexico
Monterrey, Mexico
Mexico