This road sign is located along US Hwy-60 near the Salt River Canyon rest area.

The road sign says...

+-----------------------+ | <- Cibecue Creek 4 | | <- Salt Bank 7 | | <- Canyon Creek 16 | | <- Medecine Ranch 21 | | <- Gleason Flats 26 | | <- Camp Grounds | +-----------------------+the numbers are: 4 7 16 21 26 the math is: 21 + 16 - 7 - 4 = 26 [solve for 'n'] 21 + 16 - n - 4 = 26This road sign was submitted to RoadSignMath.com on 18 March 2006.

## Update::2008.02.08

This BARS was re-evaluated to see if this road sign was a Pi BARS. Keying off of the number 7, the following Pi math was discovered.

((21 - (26 - 16)) * sqrt(4)) / 7 = Pi * 22/7 approximates Pi rounded to nearest hundredth (3.14) observe... 22 / 7 = 3.14285714 Pi = 3.14159265 [solve for 'n] ((21 - (26 - n)) * sqrt(4)) / 7 = 3.14## Update::2014.05.03

This BARS was re-evaluated when RoadHacker decided he was going to revisit this road sign and make a video for this BARS. The BARS system has evolved since this BARS was created back on 18 March 2006.

the numbers are: 4 7 16 21 26 more math: 21 / 7 + log(26 - 16) = 4 more math: 26 - 7 + sqrt(16) / sqrt(4) = 21 more math: sqrt(16 - 7) + sqrt(4) + 21 = 26 rsPiEval: (26 + 16 + sqrt(4)) / (21 - 7) = Pi * 44/14 approximates Pi rounded to nearest hundredth (3.14) rsPhiEval: (7 % sqrt(sqrt(16)) + sqrt(26 - 21)) / sqrt(4) = Phi * Phi is the golden ratio and it approximates 1.61803399 rsHwyEval: 21 + 26 + 7 + 4 + sqrt(sqrt(16)) = 60 * This road sign is just off of US Hwy-60. rsAgeEval: 21 + 26 + 7 + sqrt(16 / 4) = 56 * MathBabbler was 56 years young when he found this equation. rsStateEval: 21 + 26 + 16 / sqrt(4) - 7 = 48 * Arizona was the 48th state admitted to the Union. rsAgeEval: 4 * 7 + (26 - 21) * sqrt(16) = 48 * RoadHacker was 48 years young when he found this road sign. rs42Eval: 21 - 16 + 26 + 4 + 7 = 42 * 42 is the "Answer to Life, the Universe, and Everything" rs37Eval: 21 / 7 + 26 - 16 + 4! = 37 * Whyrs37Eval? 37 Heaven @ http://thirty-seven.org rsCardinalityEval: sqrt((26 - 21) * (16 - 7 - 4)) = 5 * There are 5 numbers in this road sign.## Updated::2014.05.06

## Updated::2014.05.26

**Creator:** Gerald Thurman
[gthurman@gmail.com]

**Created:** 18 March 2006

This work is licensed under a Creative Commons Attribution 3.0 United States License.