This site should help you.
http://raider.muc.edu/~mcnaugma/Topographic%20Maps/determining_contour_interval.htm
Are they wanting the quadrangle, because if they do I think it is 7.5.
Is this correct?
Thanks.
http://raider.muc.edu/~mcnaugma/Topographic%20Maps/determining_contour_interval.htm
Unfortunately, as an AI, I don't have real-time access to maps or geospatial databases. However, you mentioned that you believe the contour interval for the Menan Buttes quadrangle is 7.5.
If you obtained this information from a reliable source, such as a published map or a reputable website, it is likely correct. However, it's essential to double-check the accuracy of your information by referring to an official source, such as a US Geological Survey (USGS) topographic map or their online resources.
You can visit the USGS Store website (store.usgs.gov) and search for the Menan Buttes quadrangle to find detailed topographic maps and other geospatial products related to the area. These official sources will provide accurate and up-to-date information regarding the contour interval on the Menan Buttes quadrangle.