You don't need to enter this on your return, or in TurboTax. Amounts received for
granting easements aren't reported as income on your tax return.
Rather, the payment
lowers your basis in
the property, and that only becomes important later, if and when you sell the
land. The only time you report the payment as income is when the payment
exceeds your basis in the property.
Please see
"Easements" on page 3 of IRS Publication 544, Sales and
Other Dispositions of Assets for more information. (Note:
This is the 2017 version of this publication; the new one hasn't been
issued yet, but the relevant information is still valid.)