David Slauenwhite brings us this wintry sign from New Hampshire on a particularly foggy January day. This sign shares some very small type with Welcome to New Hampshire. In this sign it is more legible as “STATE PARK”.

Mr. Slauenwhite takes a moment from his usual complex math to bring us something that everyone can enjoy.

The sign is located in Fitzwilliam, New Hampshire on NH 12 southbound approaching NH 119. The GPS coordinates are approximately N42.78166 W72.14131. See sign on map!

Gerald Thurman brings another mathematically significant roadsign, this one from a rather historic location. This sign is right on the east side of the historic Cornish-Windsor Covered Bridge. It is a stunning covered bridge. There is some little type on the bottom of this sign. Under close scrutiny and with input from experts, it was determined that that read “NATL SITE”. No numbers contained to disqualify this sign.

The math here uses the great “double square” rule to find it’s solution.

This sign is located on the east-end of the bridge connecting New Hampshire with Vermont. The GPS coordinates are approximately N43.47386 W72.38359. See sign on map!

Randy Weiss brings another mathematically significant roadsign. This time from New Hampshire. The sign itself is rather unremarkable, and doesn’t seem to lead to anywhere particularly exciting. But it does have math!

This sign invokes the squaring function, but does it the long way.

This sign is on I-89 southbound, not far from the New Hampshire, Vermont border. The GPS coordinates are approximately N43 38 29.3 W72 13 37.5. See sign on map!

Randy Weiss continues his string of new state introductions this time bringing New Hampshire‘s first mathematically significant roadsign! The sign is a bit less than exciting, but it is still valid. It is curious that the sign was modified at some point to remove two positions, but what would they have been. It would be rare for a sign to start with 0. Also, why in the world do the numbers go from right to left. This sign may in fact hold great mysteries.

This may be the simplest math possible in Road Sign Math.

1 + 2 = 3

This sign is found along I-89 southbound where I-89 ends and joins I-93. The GPS coordinates are approximately N43 05 50.2 W71 28 33.4. See sign on map!

Ed.: There was an error in the Sharon sign stating it was Mr. Weiss’s 5th new state. In fact, it was his 6th! New Hampshire is now his 7th (Montana, Rhose Island, South Dakota, Utah, Vermont and Wyoming being the others), giving him a clear lead in the most states introduced to Road Sign Math!