No county shall ever become indebted for such county recreational purposes under the provisions of NRS 244A.441 to 244A.453, inclusive, by the issuance of such general obligation bonds and other general obligation securities (other than any notes or warrants maturing within 1 year from the respective dates of their issuance), but excluding any outstanding revenue bonds, special assessment bonds, or other special obligation securities, and excluding any such outstanding general obligation notes and warrants, exceeding 3 percent of the total last assessed valuation of the taxable property in the county; and no county shall ever become indebted in an amount exceeding 10 percent of such valuation by the issuance of any such general obligation securities (other than any such notes or warrants), but excluding any such outstanding special obligation securities and excluding any such outstanding general obligation notes and warrants.