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The BLM OR Quad Boundaries Map Service represents Quadrangles within Oregon and Washington as defined in North American Datum 1927 (NAD27). These quads show the approximate extent of and align with the NAD27 corner ticks as displayed on USGS Topoquads. The BLM OR Quad Boundaries features are arranged by layers as Quarter Quads (1:12K), 7.5 Minute Quads (1:24K), 15 Minute Quads (1:62,500), 30 Minute Quads (1:63,360), 1:100K Quads, 60 Minute Quads and 1:250K Quads.
The BLM OR Quad Boundaries Map Service is created from quad_boundary.gdb\quads100_poly, quads12_poly, quads15m_poly, quads24_poly, quads250_poly, quads30m_poly, and quads60_poly. This map service has scale dependencies. 7.5 Minute Quads (1:24K) display at a scale in beyond 1:3,000,001. Quarter Quads (1:12K) display at a scale in beyond 1:1,000,001. All other quads are visible at all scales. Labels for the Quarter Quads (1:12K) display at a scale in beyond 1:250,001, 7.5 Minute Quads (1:24K) display at a scale in beyond 1:500,001, 15 Minute Quads (1:62,500) display at a scale in beyond 1:750,001, 30 Minute Quads (1:63,360) display at a scale in beyond 1:500,001, 1:100K Quads display at a scale in beyond 1:3,000,001, 60 Minute Quads display at a scale in beyond 1:8,000,001 and 1:250K Quads display at a scale in beyond 1:12,500,001.
The BLM OR Quad Boundaries Map Service represents Quadrangles within Oregon and Washington as defined in North American Datum 1927 (NAD27). These quads show the approximate extent of and align with the NAD27 corner ticks as displayed on USGS Topoquads. The BLM OR Quad Boundaries features are arranged by layers as Quarter Quads (1:12K), 7.5 Minute Quads (1:24K), 15 Minute Quads (1:62,500), 30 Minute Quads (1:63,360), 1:100K Quads, 60 Minute Quads and 1:250K Quads.
The BLM OR Quad Boundaries Map Service is created from quad_boundary.gdb\quads100_poly, quads12_poly, quads15m_poly, quads24_poly, quads250_poly, quads30m_poly, and quads60_poly. This map service has scale dependencies. 7.5 Minute Quads (1:24K) display at a scale in beyond 1:3,000,001. Quarter Quads (1:12K) display at a scale in beyond 1:1,000,001. All other quads are visible at all scales. Labels for the Quarter Quads (1:12K) display at a scale in beyond 1:250,001, 7.5 Minute Quads (1:24K) display at a scale in beyond 1:500,001, 15 Minute Quads (1:62,500) display at a scale in beyond 1:750,001, 30 Minute Quads (1:63,360) display at a scale in beyond 1:500,001, 1:100K Quads display at a scale in beyond 1:3,000,001, 60 Minute Quads display at a scale in beyond 1:8,000,001 and 1:250K Quads display at a scale in beyond 1:12,500,001.