This district permits limited development of those lands that are not well suited for long term intensive agricultural production due to such factors as soil characteristics, topography, water availability, the cost of applying water and microclimate, and which, in addition, are not well suited for residential use except for very low density due to such factors as access problems, slope, soil characteristics and presence of sensitive natural resources. (Ord. 2006-04, 6-29-2006)

This R-10 district shall only apply to lands designated A-10 prior to July 5, 2006, and that meet the following criteria:

   A.   Location within an urban influence boundary, as defined by the following criteria:

      1.   Within three (3) miles from the incorporated boundaries of Ketchum, Hailey, or Bellevue; or

      2.   Within one mile from the incorporated boundaries of Carey or Sun Valley, or

      3.   Within three-fourths (3/4) of a mile from the boundary of the platted townsites of Picabo or Gannett; or

   B.   Location within one-half (1/2) mile from the R-5 zoning district. (Ord. 2006-04, 6-29-2006)

   A.   Minimum Lot Area: The minimum lot area in a subdivision shall be ten (10) acres, except:

      1.   Within an R-10 cluster development when authorized pursuant to Blaine County ordinance 77-6, as amended (subdivision ordinance).

      2.   Within a TDR receiving area.

   B.   Base Density: The base density for PUDs shall be one unit per ten (10) acres. (Ord. 2006-04, 6-29-2006)

Permitted uses for this district are limited to the following:

   A.   Timber production, grazing and other agricultural purposes, except as provided in subsection 9-6-6M of this chapter.

   B.   Open space recreational use.

   C.   Wildlife reserves.

   D.   Single-family residential use.

(Ord. 2025-03, 2-12-2025; Ord. 2006-04, 6-29-2006)

Conditional uses for this district are limited to the following:

   A.   Public outdoor recreational facilities.

   B.   Sanitary landfills.

   C.   Public or private airfields.

   D.   Public utility installations, not including business offices, repair or storage facilities.

   E.   Temporary use of a mobile home during construction of a permanent dwelling for a period not to exceed one year.

   F.   Mills for refining mining ore.

   G.   Public campgrounds when screened or hidden from view from public highways.

   H.   Gravel or shale pits, and asphalt batch plants.

   I.   Retreats.

   J.   Mobile homes and trailers on patented mining or mill site claims. Mobile homes or trailers will be allowed for purposes of a shop, office or for housing for a caretaker or watchman. The number of mobile homes and trailers to be allowed shall be determined by those considerations which include, but are not limited to:

      1.   The size of the mining operation.

      2.   The number of employees required by the mining operation.

      3.   The need for twenty four (24) hour protection or monitoring of the mining operation.

A conditional use permit will be issued on a year to year basis, renewable if the mining or mill site claim on which the structures are located is still under development or extraction is occurring. All South Central Health Department requirements must be met.

Upon expiration of the conditional use permit, all mobile homes and trailers allowed under this provision must be removed. Their removal and any required reclamation will be guaranteed through posting a performance bond, cash deposit, certified check, negotiable bond or other acceptable financial guarantee with the Board of County Commissioners.

   K.   Group daycare facilities.

   L.   Public works gravel or shale pits and public works asphalt plants.

   M.   Mining activity on private property within the Mountain Overlay District is subject to a Mountain Overlay District (chapter 21 of this title) site alteration permit.

   N.   Accessory dwelling unit (see section 9-3-11 of this title).

   O.   Wireless communication facilities (see section 9-3-16 of this title).

   P.   Animal shelter.

   Q.   Special events facility, when located within one mile of incorporated cities.

   R.   Tier 2 home occupations.

   S.   Extraction. (Ord. 2025-03, 2-12-2025; Ord. 2019-03, 1-8-2019; Ord. 2018-02, 1-23-2018; Ord. 2009-07, 9-8-2009; Ord. 2006-04, 6-29-2006)

   A.   Criteria: Cluster developments (CDs) shall be allowed in the R-10 District if the parent tract is located within one mile of a paved State, Federal, or County road or a paved road constructed to County standards in existence as of July 5, 2006; and if they meet the criteria set forth in section 10-9-6, "Density, Lot, And Development Standards", of this Code.

   B.   Minimum Lot Size: The minimum lot size for a CD shall be two and one-half (21/2) acres except in a TDR receiving area.

   C.   Maximum Number Of Lots In Cluster Tract: The maximum number of lots in a CD cluster tract shall be five (5) except if the standards set forth in subsection 10-9-6D4 of this Code are met. (Ord. 2006-04, 6-29-2006)