Grant Park, So. Milwaukee

The samples come from a small sand bar. One side of the sand bar contained pebbles, the other sand.

International Space Station 400mm Photograph Image credit: Image Science and Analysis Laboratory, NASA Johnson Space Center (http://eol.jsc.nasa.gov)	GRANT PARK, SO. MILWAUKEE 42.92N, 87.85W The link is to a photo essay of a trail in Grant Park.

ZERO MAGNIFICATION ( YELLOW LINE = 1 CM)	ZERO MAGNIFICATION ( YELLOW LINE = 1 CM)


ZERO MAGNIFICATION ( YELLOW LINE = 1 CM)	ZERO MAGNIFICATION ( YELLOW LINE = 1 CM)


ZERO MAGNIFICATION IMAGE	REFLECTANCE SPECTRUM


*1X MAGNIFICATION (YELLOW LINE = 2MM)**	3X* MAGNIFICATION (YELLOW LINE = 1MM)