Description: Contours for display at 1:1,000,000-scale from The National Map Small-Scale datasets. Contour intervals vary between 50 and 300 meters. They can be found for download at https://nationalmap.gov/small_scale/.
Description: Contours for display at medium scales (1:150,000–1:600,000) from The National Map. These contours were generated by EROS (USGS Center for Earth Resources Observation and Science) from the 1/3-arc-second National Elevation Dataset and the National Hydrography Dataset. They cover the continental United States, and can also be found for download at https://topotools.cr.usgs.gov/contour_data.php.
Description: Contours for display at medium-large scales (1:50,000–1:150,000) from The National Map. These contours were generated by EROS (USGS Center for Earth Resources Observation and Science) from the 1/3-arc-second National Elevation Dataset and the National Hydrography Dataset. They cover the continental United States, and can also be found for download at https://topotools.cr.usgs.gov/contour_data.php.
Description: Contours for display at large scales (1:50,000 and larger) from The National Map. These contours are refreshed every quarter, and are created by USGS TNM for US Topo. Contours are derived from best available data from 3DEP, and are shown on US Topo GeospatialPDF maps. These contours are created separately for each 7.5' 1:24,000-scale US Topo quadrangle, and thus they may not match across quad boundaries. For information about 3DEP, please see https://nationalmap.gov/3DEP/.
Description: Group layer containing individual feature layers for large-scale normal index contour labels, normal intermediate contour labels, and normal supplemental contour labels.
Description: Group layer containing individual feature layers for large-scale normal index contour lines, normal intermediate contour lines, and normal supplemental contour lines.
Description: Labels for Depression Index Contours: Lines of equal elevation showing a depression in the earth from surrounding elevation. The hachures (lines) indicate the direction of the depression. Index contours are at 50-foot intervals.
Description: Labels for Depression Intermediate Contours: Lines of equal elevation showing a depression in the earth from surrounding elevation. The hachures (lines) indicate the direction of the depression. Intermediate contours are at 10-foot intervals.
Description: Labels for Depression Supplemtal Contours: Lines of equal elevation showing a depression in the earth from surrounding elevation. The hachures (lines) indicate the direction of the depression. Supplemental contours are at 5-foot intervals.
Description: Lines of equal elevation showing a depression in the earth from surrounding elevation. The hachures (lines) indicate the direction of the depression. Index contours are at 50-foot intervals.
Label: Description: Lines of equal elevation showing a depression in the earth from surrounding elevation. The hachures (lines) indicate the direction of the depression. Index contours are at 50-foot intervals.
Description: Lines of equal elevation showing a depression in the earth from surrounding elevation. The hachures (lines) indicate the direction of the depression. Intermediate contours are at 10-foot intervals.
Label: Description: Lines of equal elevation showing a depression in the earth from surrounding elevation. The hachures (lines) indicate the direction of the depression. Intermediate contours are at 10-foot intervals.
Description: Lines of equal elevation showing a depression in the earth from surrounding elevation. The hachures (lines) indicate the direction of the depression. Supplemental contours are at 5-foot intervals.
Label: Description: Lines of equal elevation showing a depression in the earth from surrounding elevation. The hachures (lines) indicate the direction of the depression. Supplemental contours are at 5-foot intervals.